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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Frank's easy mini-GH tek: quit worrying about RH! 11
#18322939 - 05/26/13 12:34 PM (10 years, 8 months ago) |
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This is part of my series on how I get things done. I hope it helps!
So I had this posted as part of my spring projects thread. I figured I would move it out to the main forum and go into more detail.
My GH is set up for maximum FAE and high RH at all times. Cubes and other fresh air loving species benefit greatly from this. There are others ways to do this, of course- this is just how I meet the needs of my mushrooms.
I use an ultrasonic humidifier and a filter/wick-type evaporative humidifier.
It's a $35 evaporative humidifier bought from a department store during winter months. It holds 1 gallon of water and it has a low and high setting. I use the low setting.
Quote:
Note that these are commonly called a number of different things, most commonly a "cool mist." This can be misleading as sometimes ultrasonics are labelled as "cool mist." Check to make sure your humidifier uses a filter before purchasing.
The ultrasonic is a $60 ultrasonic, also from a department store during winter months. It holds 1.25 gallons of water (I believe).
I bought these with no particular specifics in mind, the only thing you should consider is how often you want to fill them (capacity) and if they fit in your GH (very important.) Just stay away from foggers meant for reptile terrariums and other small or low-capacity ultrasonics, you'll be filling them constantly.
It's very easy to overthink a greenhouse. Here's the adjustable variables as I see them:
Humidity (surface): Each substrate in the greenhouse gets cased to provide a nice microclimate of 99% RH at the surface of the substrate where it matters. The ultrasonic provides a "misting" by running 15 minutes on every 1-2 hours. This keeps the casing layer moist but never wet.
Humidity (environment): An evaporative humidifier is used to buffer the RH levels inside the GH. My humidifier in my environment keeps the RH level at a minimum of 85%. Every one hour the ultrasonic is on for 15 minutes and the RH jumps up for a bit.
FAE: As much as possible. I run my evaporative humidifer 24/7 for my edibles that don't mind a bit lower RH in the chamber. For cubes I have been finding my casing layers dry up too quickly. To compensate, the cool mist is on 30 min then off for 30. The ultrasonic runs 15 min on every hour, right after the cool mist shuts off You can adjust the amount of FAE by how zipped/unzipped the curtain is on the sides.
Here's how it is set up, it's very simple:
Two 4-tier wire shelves back to back. Ultrasonic on the top, evaporative humidifier on the bottom corner. Curtains unzipped 1/4 of the way on both sides.
Curtains pulled back by the evaporative humidifer for good FAE.

Timer for the ultrasonic is 15 minutes on every one-two hours.

I use only distilled water in the ultrasonic. This way I never need to worry about scaling and buildup ruining the fogger disc.
The scaling on the evaporative humidifer gets cleaned once a month with vinegar, a good soak and scrubbing will break all those mineral deposits off. The filter/wick gets washed off every two weeks and changed every month or two.
Other than filling the humidifiers, it is pretty much set-n-forget.
I have messed with a few different GH setups in the past, here's that shit I don't like:
1) Impellers. These fucking things never failed to soak my GH, no matter how many slits or timings I tried. Too much wet, too loud, too much maintenance.
2) Computer fans. I know they work for a lot of people but I want TONS of FAE in my GH. Even larger computer fans have never satisfied me.
3) Hygrotherm. It's a cheap humidity/temp controller intended for reptile terrariums. Precision humidity control may have its perks, but the humidity I care about is at the surface of the substrate. It was a waste of $90.
4) Slits. I don't like cutting up my GH 
5) Piping in the humidifiers from the outside. I've found it unnecessary and a pain in the ass.
Cubensis, WBS bag:

P. Galindoi:
King oyster:

There are a million ways to dial this in for different species, but I am sticking to the basics because more specific greenhouse methods are something you will need to figure out given your specific environment and conditions.

Edited by FrankHorrigan (10/11/13 12:57 PM)
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Maya Boomba
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan] 1
#18322972 - 05/26/13 12:40 PM (10 years, 8 months ago) |
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Please don't ever remove the info you put here frank it's worth too much. I'm thinking if I should print every single page of your journal and stash it somewhere in a safe....
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cronicr



Registered: 08/07/11
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba] 1
#18323164 - 05/26/13 01:16 PM (10 years, 8 months ago) |
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about time frank, ther's alot of gh's around again these days
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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veda_sticks
Cultivator




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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba]
#18323167 - 05/26/13 01:16 PM (10 years, 8 months ago) |
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Awesome writup. all makes sense :-)
One of these days ill get round to posting a tek of my own.
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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Novanity1
Student

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba] 1
#18323188 - 05/26/13 01:19 PM (10 years, 8 months ago) |
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Frank is your filter-type cool mist considered a wick type humidifier?
Similar to this one: http://www.vicks.com/products/humidifiers/v3100-cool-mist-humidifier/
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Novanity1]
#18323198 - 05/26/13 01:21 PM (10 years, 8 months ago) |
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Novanity, yes it is, I need to add that to the OP
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Novanity1
Student

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18323295 - 05/26/13 01:39 PM (10 years, 8 months ago) |
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Well how about that. When I first setup my GH I bought that specific humidifier and then read all kinds of threads saying it was the "wrong type" so I returned it and got an impeller type. But in the back of my head I was thinking "why not just use it with a USH". 
Would it matter that it blows sideways instead of straight up?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Novanity1]
#18323375 - 05/26/13 01:53 PM (10 years, 8 months ago) |
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Nope, it won't make a difference. It'll circulate the air in there just fine
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Saint Stephen


Registered: 03/05/13
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18324450 - 05/26/13 05:58 PM (10 years, 8 months ago) |
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How small can a green house be and still be work? My pmp is running out of room. i was hoping to use maybe 3 tiers of shelves?
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Timehole



Registered: 04/28/12
Posts: 156
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18324554 - 05/26/13 06:23 PM (10 years, 8 months ago) |
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Another awesome write-up frank! If I ever get around to making a GH, this thread shall be my guide.
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gimp
Stranger



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Saint Stephen]
#18324599 - 05/26/13 06:33 PM (10 years, 8 months ago) |
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--------------------

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billb
The Wolf I Feed



Registered: 10/09/11
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Loc: Dancing with the Dead in my Dr...
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: gimp]
#18325162 - 05/26/13 08:49 PM (10 years, 8 months ago) |
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I like it!!!!
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cronicr



Registered: 08/07/11
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: billb]
#18325184 - 05/26/13 08:53 PM (10 years, 8 months ago) |
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all thats missing are the mushrooms;) so i will be waiting(love your edibles btw)
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
Edited by cronicr (05/26/13 09:38 PM)
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18325344 - 05/26/13 09:38 PM (10 years, 8 months ago) |
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Quote:
Saint Stephen said: How small can a green house be and still be work? My pmp is running out of room. i was hoping to use maybe 3 tiers of shelves?
You can scale it down. You just need to adjust your ultrasonic timings accordingly so you don't flood your GH 
Quote:
cronicr said: all thats missing are the mushrooms;)
Quote:
FrankHorrigan said:


Link is in the OP 
I don't have any recent active grows in the GH. It's kept in a cold room for kings most of the year and I didn't figure many folks here would find that as interesting as they do over in GMM
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cronicr



Registered: 08/07/11
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18325350 - 05/26/13 09:39 PM (10 years, 8 months ago) |
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priceless timing as i was just complimenting those through an edit
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18325382 - 05/26/13 09:45 PM (10 years, 8 months ago) |
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My first time casing the kings, worked like a charm
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SpaceVox



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18325966 - 05/27/13 12:22 AM (10 years, 8 months ago) |
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Ow frank, now you are making me buy things again :P
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veda_sticks
Cultivator




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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: SpaceVox]
#18326568 - 05/27/13 04:30 AM (10 years, 8 months ago) |
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Wicking type humidifier?
In the past like the other poster mentioned posts say it should be an impellar type humidifier or it wont humidify a greenhouse, but im guessing your using it more for FAE?
And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
What if you didnt want to use a casing layer and just fruit trays or substrate blocks?
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: veda_sticks]
#18327235 - 05/27/13 10:02 AM (10 years, 8 months ago) |
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Quote:
veda_sticks said: And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
Pretty much, yeah 
By itself the wick type humidifier will not provide humidity higher than 86% IME. It really does work great to disperse the moisture from the ultrasonic around though.
So the wick type humidifier is really just for constant FAE + maintaining a certain minimum RH for the environment. The ultrasonic takes care of the rest.
If you don't want to case your trays, then it's just a matter of adjusting your ultrasonic timings to make sure the substrate doesn't dry up too fast. If you really wanted to get fancy you can put the cool mist on a timer as well, but I love my 24/7 FAE 
I prefer casing them for the GH as well.
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veda_sticks
Cultivator




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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18327280 - 05/27/13 10:15 AM (10 years, 8 months ago) |
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Quote:
FrankHorrigan said:
Quote:
veda_sticks said: And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
Pretty much, yeah 
By itself the wick type humidifier will not provide humidity higher than 86% IME. It really does work great to disperse the moisture from the ultrasonic around though.
So the wick type humidifier is really just for constant FAE + maintaining a certain minimum RH for the environment. The ultrasonic takes care of the rest.
If you don't want to case your trays, then it's just a matter of adjusting your ultrasonic timings to make sure the substrate doesn't dry up too fast. If you really wanted to get fancy you can put the cool mist on a timer as well, but I love my 24/7 FAE 
I prefer casing them for the GH as well.
Awesome, always give out good clear info.
Ive never really tried casing layeres (except for 1 verm casing) but i know i will have to use one at some point as ive got a pan cyan print i need to try so will need one for that.
Once i get things sorted out and have a bit more money ill need to try setting up a greenhouse for doing some edible grows, probably oysters and lions mane and some button mushrooms (finally got a button mushroom kit that hasnt actually compleltly colinised the casing layer)
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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prismism


Registered: 05/11/09
Posts: 5,570
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: veda_sticks]
#18327694 - 05/27/13 12:14 PM (10 years, 8 months ago) |
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Impeller cool mist humidifiers move much more air than the wick types. I've had both. If FAE is your goal, I would definitely choose the impeller over the wick. They're not any difference in price, so I can't understand why you wouldn't use the impeller variety, unless you just can't find one.
-------------------- ephemeral anomalous
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: prismism] 1
#18327715 - 05/27/13 12:20 PM (10 years, 8 months ago) |
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Quote:
1) Impellers. These fucking things never failed to soak my GH, no matter how many slits or timings I tried. Too much wet, too loud, too much maintenance.
I've had two different v400s.
I hated them both.
Yeah, no impellers for me
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prismism


Registered: 05/11/09
Posts: 5,570
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18327800 - 05/27/13 12:35 PM (10 years, 8 months ago) |
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I guess it would depend on the brand. I've never used a vicks. An impeller motor is louder, that's for sure.
-------------------- ephemeral anomalous
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Queen of Kings
Get on with the Fascination



Registered: 12/11/11
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: prismism]
#18327838 - 05/27/13 12:41 PM (10 years, 8 months ago) |
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Frank, do you clean that cool mist -- like by using vinegar in it from time to time? I have one similar and find that over time (and not much time at that) it moves less and less water for me. A vinegar cycle (out of the GH environment!) helped a tiny bit but not much.
Thanks for the tek. All solid advice.
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FrankHorrigan
The Inquisition



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Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Queen of Kings]
#18328708 - 05/27/13 03:38 PM (10 years, 8 months ago) |
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Yep, for all the scaling and mineral deposits, I use a nice vinegar soak 
For the ultrasonic I only use distilled water. That way I never have to worry about the fogger disc getting buildup all over it. I need to add that to the OP.
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llama_police
Fun guy



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18328899 - 05/27/13 04:04 PM (10 years, 8 months ago) |
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What is your room temp? I am still trying to dial in a GH and I'm getting stupid amounts of condensation, resulting in poor RH, so I'm wondering if it's because I am keeping it my garage, which is dropping to around 12-15c at nights at the moment and only getting to around 18-20c by day. I have a fishtank heater + airstone in a big tub at the bottom of the GH and have just lowered the temp in that to about 22c, which seems to have helped a little. However the RH is still sitting down near 75%. I have a fan blowing fresh air in for 15 mins every hour and an ultrasonic in the top, running for 4 minutes every 2 hours. Should I increase the ultrasonic increments?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18328926 - 05/27/13 04:09 PM (10 years, 8 months ago) |
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Quote:
llama_police said: What is your room temp? I am still trying to dial in a GH and I'm getting stupid amounts of condensation, resulting in poor RH, so I'm wondering if it's because I am keeping it my garage, which is dropping to around 12-15c at nights at the moment and only getting to around 18-20c by day. I have a fishtank heater + airstone in a big tub at the bottom of the GH and have just lowered the temp in that to about 22c, which seems to have helped a little. However the RH is still sitting down near 75%. I have a fan blowing fresh air in for 15 mins every hour and an ultrasonic in the top, running for 4 minutes every 2 hours. Should I increase the ultrasonic increments?
I don't recommend trying to adjust the temps inside the greenhouse, I would move it inside to a room with more stable temps.
Temp differential between the inside and outside of the GH will cause condensation and lower your RH.
At 75% RH you're going to need to run your ultrasonic as often as needed to keep your substrates / casings from drying up to quickly. I would try experimenting with different timings for the ultrasonic and watch the way the casings/substrates behave, then continue to adjust accordingly until you find a sweet spot.
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llama_police
Fun guy



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18328950 - 05/27/13 04:14 PM (10 years, 8 months ago) |
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I had a feeling you'd say that. Good to know at least that I am on the right track... sorta...
Unfortunately, there's nowhere else I can put it, not that is any warmer in any case. I have previously been running the ultrasonic for 15 mins every hour, then dropped that to every 3 hours when the condensation started to become a problem. I might bump it back up to 15 mins every 2 hours now that the condensation seems to be improving after dropping the temps inside.
Thanks for the reassurance, Frank. You're an asset to this community!
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Maya Boomba
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: llama_police]
#18330593 - 05/27/13 09:49 PM (10 years, 8 months ago) |
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Hey Frank! A question not related to this thread but I know it's the best way to get a hold of you. How do you dry your fruits? I'm currently just fanning them but i'd like to know a better way if I was planning to do more tubs in the future.
Do you use Damprid? I'm trying to find a store where I could buy wtv works best to dry them.
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba]
#18332733 - 05/28/13 10:38 AM (10 years, 8 months ago) |
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Quote:
Maya Boomba said: Hey Frank! A question not related to this thread but I know it's the best way to get a hold of you. How do you dry your fruits? I'm currently just fanning them but i'd like to know a better way if I was planning to do more tubs in the future.
Do you use Damprid? I'm trying to find a store where I could buy wtv works best to dry them.
Use a dehydrator.
Next time send me a PM instead of jacking the thread
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joeydimes
Student



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18333298 - 05/28/13 01:25 PM (10 years, 8 months ago) |
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Can you provide links to amazon or like home depot with the exact brand and model of the coolmist and ultrasonic I am wanting to purchase today but there is a lot out there and its confusing.
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: joeydimes]
#18333354 - 05/28/13 01:36 PM (10 years, 8 months ago) |
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I would if they were at all important 
I don't even look at brands anymore.
The ones pictured, it's a $35 cool mist (wicking/filter) from wal-mart during winter months. It holds 1 gallon of water and it has a low and high setting. I use the low setting.
The ultrasonic is a $60 ultrasonic, also from wal-mart during winter months. It holds 1.25 gallons of water (I believe).
I bought these with no particular specifics in mind, the only thing you should consider is how often you want to fill them (capacity) and if they fit in your GH (very important.) Just stay away from foggers meant for reptile terrariums and other small or low-capacity ultrasonics, you'll be filling them constantly.
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joeydimes
Student



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18333403 - 05/28/13 01:54 PM (10 years, 8 months ago) |
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: joeydimes]
#18333413 - 05/28/13 01:56 PM (10 years, 8 months ago) |
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It'd work fine
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joeydimes
Student



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18333485 - 05/28/13 02:21 PM (10 years, 8 months ago) |
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can you post a link for the ultrasonic I just really don't want to get the wrong kind//also where did you get your greenhouse//I see a few different types and prices anything to look for in those
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joeydimes
Student



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: joeydimes]
#18333506 - 05/28/13 02:26 PM (10 years, 8 months ago) |
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bassclef
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: joeydimes]
#18335068 - 05/28/13 07:38 PM (10 years, 8 months ago) |
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i'm working on dialing in my mini-gh. what should i be looking for in substrate change? How can I tell of its to dry/to wet?
other than obvious pooling
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cronicr



Registered: 08/07/11
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: bassclef]
#18335100 - 05/28/13 07:48 PM (10 years, 8 months ago) |
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for me it was always having beads of moisture on the surface but not pooling
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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bassclef
Stranger

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18335196 - 05/28/13 08:03 PM (10 years, 8 months ago) |
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Quote:
cronicr said: for me it was always having beads of moisture on the surface but not pooling
that's about where i'm at now, great! thanks
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18335416 - 05/28/13 08:41 PM (10 years, 8 months ago) |
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Quote:
cronicr said: for me it was always having beads of moisture on the surface but not pooling

When it's cased you want to make sure your casing layer is always moist, never wet or dry though.
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the_jerk
return Noob


Registered: 02/13/13
Posts: 105
Last seen: 10 years, 6 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18382323 - 06/07/13 09:45 AM (10 years, 8 months ago) |
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Frank, I noticed you're advocating for wire shelves. How much of an issue has rust been?
I have a plastic height-adjustable 5-shelf unit (18"x32") wrapped in 6mil plastic and I'm working on dialing it in empty. I know this will change a bit when full, but will give me a good baseline.
My vicks cool-mist (impeller type) is keeping it at 93-95% (measured in the center of the middle shelf) pulling in fresh air at the bottom corner like yours is. A lot of that moisture is condensing on the underside of the first shelf above the humidifier and raining back down. This led me to think the plastic shelves dont have enough negative space in them....although they appear to be about 50% holes, 50% solid.
I also tried plumbing in a very good ultrasonic I have from the outside, into the center shelf but it too seems to just fall to the floor after completely fogging out the center . Keeping the top two shelves adequately humidified seems to be my issue.
Any advice based on the above? Perhaps I should re-purpose the plastic shelves and switch to wire. I cant find martha's or mini GH's at stores near me so I'll be making mine from shelves and a plastic sheet. This at least gives me the ability to use any shelves. I'd like to keep the dimensions within 19" x 42" x 8'
As always, I appreciate your input and knowledge. I recently switched back to using a TiT incubator like everyone used to back in the day after reading your write up and I cant believe I ever stopped. The difference is significant, even over a temp-controlled room
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: the_jerk]
#18389910 - 06/08/13 09:29 PM (10 years, 8 months ago) |
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Quote:
the_jerk said: Frank, I noticed you're advocating for wire shelves. How much of an issue has rust been?
I have a plastic height-adjustable 5-shelf unit (18"x32") wrapped in 6mil plastic and I'm working on dialing it in empty. I know this will change a bit when full, but will give me a good baseline.
My vicks cool-mist (impeller type) is keeping it at 93-95% (measured in the center of the middle shelf) pulling in fresh air at the bottom corner like yours is. A lot of that moisture is condensing on the underside of the first shelf above the humidifier and raining back down. This led me to think the plastic shelves dont have enough negative space in them....although they appear to be about 50% holes, 50% solid.
I also tried plumbing in a very good ultrasonic I have from the outside, into the center shelf but it too seems to just fall to the floor after completely fogging out the center . Keeping the top two shelves adequately humidified seems to be my issue.
Any advice based on the above? Perhaps I should re-purpose the plastic shelves and switch to wire. I cant find martha's or mini GH's at stores near me so I'll be making mine from shelves and a plastic sheet. This at least gives me the ability to use any shelves. I'd like to keep the dimensions within 19" x 42" x 8'
As always, I appreciate your input and knowledge. I recently switched back to using a TiT incubator like everyone used to back in the day after reading your write up and I cant believe I ever stopped. The difference is significant, even over a temp-controlled room 

I recommend (and bear with me here) ditching the impeller.
IME impellers make things very wet and its difficult to not soak everything. I swapped my impeller with a cool mist and ultrasonic (neither piped in) and never looked back.
The buffered RH FAE allows great evaporation in between ultrasonic "mistings" so the casings /subs never dry out before the first flush is over and it needs to be re-cased anyhow.
Rust has not been an issue with my wire shelves, I've done about 6 months of runs on these new shelves and all is well. I even double checked today.
I hope this helps!
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the_jerk
return Noob


Registered: 02/13/13
Posts: 105
Last seen: 10 years, 6 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18396680 - 06/10/13 10:27 AM (10 years, 8 months ago) |
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Quote:
FrankHorrigan said:

I recommend (and bear with me here) ditching the impeller.
IME impellers make things very wet and its difficult to not soak everything. I swapped my impeller with a cool mist and ultrasonic (neither piped in) and never looked back.
The buffered RH FAE allows great evaporation in between ultrasonic "mistings" so the casings /subs never dry out before the first flush is over and it needs to be re-cased anyhow.
Rust has not been an issue with my wire shelves, I've done about 6 months of runs on these new shelves and all is well. I even double checked today.
I hope this helps!
I knew the line about ditching the impeller style humidifier was coming Since it's what I have I will turn it down to low to try and mimic the rate of a cool mist wick-type. I toyed with the low setting over the weekend and it seems to not be soaking everything anymore. I'm stopping by a cigar shop today to pick up a new hygrometer to double check the humidity. My digi says 94% and my analog one - calibrated with the wet paper towel - reads 95-97% hard to tell exactly and that's just with the cool-mist running on low. Since it's on low I have a little fan pushing air up from beside the cool-mist to helop circulate stale-air.
I'm glad to hear you haven't encountered rust issues. I had read some posts, one by RR, where they had terribly rusted shelves within a week. That's why I went plastic and chose the shelves with the most amount of ventilation holes in them. However, the wire shelves offer at least triple the hole-space as compared to plastic. I'd like to try 360 degree fruiting from some cakes from small trays which would require wire shelves. All my mono's seem to want to fruit 360o anyways.
I was going to build a PVC frame to hold the plastic sheeting around the shelves...then I came acrioss corrugated plastic sheets:

Can you think of any reason for me to NOT make the sides, back, and top of my greenhouse out of a clear version of this material instead of plastic sheets on a frame? I think it would be easier to work with and doesnt require a frame to hold it up. Only the front "door" with zipper would be 6mil plastic sheeting.
Sorry for all the questions, if you think I should just start a thread instead just say the word. I just thought maybe this discussion might help others referring to your tek's (like I do all the time) that cant find mini greenhouses in stores anywhere, like me.
Edited by the_jerk (06/10/13 10:28 AM)
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Quote:
FrankHorrigan said: FAE: As much as possible. For low-RH tolerant species: With the filter/wick-type cool mist buffering the RH, you can and should run your cool mist 24/7. This provides a ton of FAE. You can adjust the amount of FAE by how zipped/unzipped the curtain is on the sides. For cubes: I have been finding my casing layers dry up too quickly. To compensate, the cool mist is on 30 min then off for 30. The ultrasonic runs 15 min on every hour, right after the cool mist shuts off 
updated the OP, been playing with cubes in here again
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Quote:
FrankHorrigan said: Now that it is warm in my basement I will be messing with cubes in here.

Small update.
That's a bag of WBS spawn intended for a tub that had a pea-sized spot of bluing myc on it. So I cased it with 50/50+ and fruited it in the greenhouse. Looks like a leucistic in the middle there
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cyb3rtr0n
searching for truth




Registered: 05/06/09
Posts: 1,821
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You mention using two greenhouse shelves back to back. Do you cut the backs out of each greenhouse plastic and seal them together or something?
I'm thinking of a mini greenhouse setup, would adding a cool mist and an ultrasonic on a cycle timer take up too much room if only one GH is used?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH tek [Re: cyb3rtr0n]
#18513865 - 07/04/13 10:53 PM (10 years, 7 months ago) |
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Quote:
cyb3rtr0n said: You mention using two greenhouse shelves back to back. Do you cut the backs out of each greenhouse plastic and seal them together or something?
I'm thinking of a mini greenhouse setup, would adding a cool mist and an ultrasonic on a cycle timer take up too much room if only one GH is used?
No, no, it's not GH shelves, they are actual 4-tier wire shelves.
The tarp is from a large (double-wide) mini-GH found at a garden store.
You can do this with one set of shelves or two. Use the same equipment for either.
Some people "pipe-in" their humidifiers to save space and evenly distribute moisture and air. I think it's over complicating things.
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cyb3rtr0n
searching for truth




Registered: 05/06/09
Posts: 1,821
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thanks.
Yeah, I'd rather keep the cool mist and ultrasonic inside the greenhouse. I'll probably just order the standard 4 shelf greenhouse and see how that works out.
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SpawnRun
Morchella esculenta



Registered: 11/12/10
Posts: 301
Loc: Oregon
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Quote:
FrankHorrigan said:
Some people "pipe-in" their humidifiers to save space and evenly distribute moisture and air. I think it's over complicating things.
I agree. RR has always maintained the same opinion, I believe. And for the record, impeller humidifiers ARE cool mist humidifiers.....
-------------------- Clayton Wiseman
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#18567000 - 07/16/13 02:06 PM (10 years, 7 months ago) |
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Quote:
FrankHorrigan said: P. Galindoi:

King oyster:

Updated the OP with my recent success with P. Galindoi and some king oyster pictures from last spring.
Quote:
SpawnRun said: And for the record, impeller humidifiers ARE cool mist humidifiers.....
I realize that. That's why I made it clear in the OP what type of cool mist humidifier I use:
Quote:
FrankHorrigan said: I use an ultrasonic humidifier and a filter/wick-type cool mist humidifier.
It's a $35 cool mist (wicking/filter) bought from a department store during winter months. It holds 1 gallon of water and it has a low and high setting. I use the low setting.
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joeydimes
Student



Registered: 05/11/12
Posts: 106
Last seen: 7 years, 8 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18567241 - 07/16/13 03:16 PM (10 years, 7 months ago) |
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Frank,
I see your trays are aluminum containers lined with garbage bags. Now do you cover those before fruiting after you add the spawn and substrate mixture together to let them consolidate?
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SpawnRun
Morchella esculenta



Registered: 11/12/10
Posts: 301
Loc: Oregon
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: joeydimes]
#18569852 - 07/17/13 02:47 AM (10 years, 7 months ago) |
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I thought you were distinguishing between impeller humidifiers and coolmist humidifiers. Nice grow, BTW....
-------------------- Clayton Wiseman
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: SpawnRun]
#18570771 - 07/17/13 10:08 AM (10 years, 7 months ago) |
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Quote:
joeydimes said: Frank,
I see your trays are aluminum containers lined with garbage bags. Now do you cover those before fruiting after you add the spawn and substrate mixture together to let them consolidate?
Yes, I cover the trays with foil or press-n-seal, whichever is laying around. I poke 5-6 small holes in the cover for GE.
Then they are cased and fruited immediately once 100% colonized.
Quote:
SpawnRun said: I thought you were distinguishing between impeller humidifiers and coolmist humidifiers. Nice grow, BTW....

Gotcha, no, just for simplicity sake I was referring to impeller CMs as impellers and wicking/filter CMs as cool mist. I hate having to distinguish between the two every time the phrase comes up.
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golden myc


Registered: 06/08/13
Posts: 93
Loc: stratosphere
Last seen: 8 years, 10 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18581731 - 07/19/13 05:22 PM (10 years, 7 months ago) |
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Frank:
Have u ever fruited 'uncased' in your GH? I'm doing 6 trays uncased.
They are p envy -I see some pinning. --seems slow though
My issue is that they turned blue after 2 days in the GH. I've got them all back normal, but one is still very blue in the center and has some weird looking knots on it and kinda oozy.
I'm not sure its even knots. Oh, and one tray went into the trash. There was green mold on the side. The rest look fine
I'm thinking about Late Casing.
I have to run the ultra sonic 15 min on and 25 min off with the coolmist 30 on/30 off just to keep the RH at 90% and it seems like
What do u think about Late Casing or would u just see how it goes
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SpawnRun
Morchella esculenta



Registered: 11/12/10
Posts: 301
Loc: Oregon
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: golden myc]
#18582545 - 07/19/13 08:50 PM (10 years, 7 months ago) |
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^^I've done un-cased in a GH; didn't care for it. That bluing is usually from heavy water droplets bruising the substrate. Also could be from contamination....
-------------------- Clayton Wiseman
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golden myc


Registered: 06/08/13
Posts: 93
Loc: stratosphere
Last seen: 8 years, 10 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: SpawnRun]
#18583166 - 07/19/13 11:35 PM (10 years, 7 months ago) |
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It is contaim.
Just threw out 2 more trays.
I guess the cool mist blows the trich everywhere....
Still have 3 good trays and I cleaned out the entire GH then put the good trays back.
Ill try late casing the good ones tomorrow. maybe they will make it.
I wonder if I had cased, if this would have happened..
Edited by golden myc (07/19/13 11:41 PM)
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Germanelite
Shroomery-fanatic



Registered: 03/08/13
Posts: 221
Last seen: 7 years, 7 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: golden myc]
#18583227 - 07/19/13 11:54 PM (10 years, 7 months ago) |
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Rofl its kinda hillarious my first grow was identicle to this same humidis and everything one thing to note is with my gh at least the damn bars started to rust a lil bit other than that good info i may try a gh again
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: golden myc]
#18583323 - 07/20/13 12:33 AM (10 years, 7 months ago) |
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Quote:
golden myc said: I guess the cool mist blows the trich everywhere....
I wonder if I had cased, if this would have happened..
I mean, it blows the spores everywhere, but if you have properly pasteurized substrate and clean grain spawn it will not be a problem.
Casing shouldn't matter if the casing layer and sub are properly pasteurized and the spawn is clean.
Sorry for your loss
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SpawnRun
Morchella esculenta



Registered: 11/12/10
Posts: 301
Loc: Oregon
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18583410 - 07/20/13 01:18 AM (10 years, 7 months ago) |
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Quote:
FrankHorrigan said:
Quote:
golden myc said: I guess the cool mist blows the trich everywhere....
I wonder if I had cased, if this would have happened..
I mean, it blows the spores everywhere, but if you have properly pasteurized substrate and clean grain spawn it will not be a problem.
Casing shouldn't matter if the casing layer and sub are properly pasteurized and the spawn is clean.
Sorry for your loss 
This is true. I have recently learned that the fruiting environ does not have to be that clean, though I have always tried to keep it as such. I suppose I got a little "caught-up" in the Lysol/Iso craze hahaha.....
I reiterate, that sucks about your loss....
-------------------- Clayton Wiseman
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roomsh
Stranger
Registered: 09/09/13
Posts: 44
Last seen: 10 years, 3 months
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Quote:
FrankHorrigan said:
Quote:
cyb3rtr0n said: You mention using two greenhouse shelves back to back. Do you cut the backs out of each greenhouse plastic and seal them together or something?
I'm thinking of a mini greenhouse setup, would adding a cool mist and an ultrasonic on a cycle timer take up too much room if only one GH is used?
No, no, it's not GH shelves, they are actual 4-tier wire shelves.
The tarp is from a large (double-wide) mini-GH found at a garden store.
You can do this with one set of shelves or two. Use the same equipment for either.
Some people "pipe-in" their humidifiers to save space and evenly distribute moisture and air. I think it's over complicating things.
I really want one of those tarps... where can i get one?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH tek [Re: roomsh]
#18842340 - 09/14/13 08:22 PM (10 years, 5 months ago) |
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It came with a retail mini-greenhouse unit. A double-wide.
I don't remember the model name. I'm sure any semi-transparent tarp will work though.
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tbagtag
Boomer Barron

Registered: 01/16/13
Posts: 1,432
Loc: Amsterdam
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Frank, how necessary is the casing layer for a greenhouse? I just set mine up and wont have anything to stick in it for 4 days. I plan on going a very low tek route. If I need a casing layer what would you recommend?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH tek [Re: tbagtag]
#18867047 - 09/20/13 10:28 AM (10 years, 5 months ago) |
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Quote:
tbagtag said: Frank, how necessary is the casing layer for a greenhouse? I just set mine up and wont have anything to stick in it for 4 days. I plan on going a very low tek route. If I need a casing layer what would you recommend?
I would go with 50/50+ but if you are going low tek, verm will work as well.
Or even just straight coir if you wanna get real old-school 
Updates, everyone, nothing major but I realized I had some very early galindoi images up. I replaced them with the galindois at harvest time. Much better
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tbagtag
Boomer Barron

Registered: 01/16/13
Posts: 1,432
Loc: Amsterdam
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Im setting it up tomorrow, my bricks will be ready to go into it in a few more days. Do you mind if I post photos once it goes up or would you rather I start my own thread?
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RandomFX
protege


Registered: 12/02/13
Posts: 1,015
Loc: North-East, USA
Last seen: 5 years, 2 months
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So, we are 7 months after....is there anything you have learned better , would change, etc? by now you are surely well broken in with some wisdom?
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quadracer
Porcini Hunter



Registered: 12/14/08
Posts: 596
Loc: Here, Now
Last seen: 1 month, 13 days
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Re: Frank's easy mini-GH tek [Re: RandomFX]
#19412609 - 01/13/14 02:08 PM (10 years, 1 month ago) |
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Frank, what kind of timer are you using to alternate the humidifiers?
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blindingleaf
blue collar underworld



Registered: 07/19/13
Posts: 22,008
Loc: sub-surface unseen
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Re: Frank's easy mini-GH tek [Re: quadracer]
#19608768 - 02/23/14 02:33 PM (10 years, 1 day ago) |
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Frank, I'm getting a 4 tier gh today (I'm assuming its half of what u have, b/c u have two together?). I'm using ur set up. just wondering any tips u have on maintenance, daily, weekly, monthly, anything like wiping walls, shelves, etc. my plan is to use it with edibles, and stick with mono's and buckets for cubes. the edibles i have are still colonizing in bags now tho, so i will do a trial run with cubes in there to dial in conditions. I'm mainly worried about what happens when u get a contamination in there, trich, vert, whatever. after taking out the affected substrate, do u just zip it back up? or what? also, what do u do in between runs? say u are not going to use it for a month or so after is has been used, do u dry it out, wipe it down, etc, and then repeat before using again?
-------------------- A few thoughts on cultivation MICROBIAL HUSBANDRY!!!! The whole is greater than the sum of its parts
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EcstaticTrance


Registered: 05/28/08
Posts: 17
Last seen: 4 years, 7 months
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Hi there! I have the exact same setup as yours, my ultrasonic runs for 15 minutes every hour and the cool mist (wick type) runs for 30 minutes per hour but I have a problem maintaining stable relative humidity. When the ultrasonic starts, the rh goes up to 89, and stays quite stable but as soon as the ultrasonic kicks in it starts dropping down until it reach 69-70%. I've set up trays of wet perlite to try to make it more stable on the empty shelf but it doesn't seems to help much. I've boosted my room rh with another ultrasonic, doesn't seems to help much neither. I've tried mesuring the rh with 3 different hygromethers but they all read around the same (they're digital though so not ideal, a good one is on the way)... So any idea about what I should do? I am misting my casing now a bit so it doesn't dry but is there anything else I should do? I was thinking about running my ultrasonic for longer but it would probably soak the greenhouse. Any troubleshooting help would be welcome
Edited by EcstaticTrance (02/26/14 11:51 AM)
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bodhisatta 
Smurf real estate agent



Registered: 04/30/13
Posts: 61,890
Loc: Milky way
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: EcstaticTrance]
#19620667 - 02/26/14 11:58 AM (9 years, 11 months ago) |
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I really wish I had the space to do this.
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Quote:
RandomFX said: So, we are 7 months after....is there anything you have learned better , would change, etc? by now you are surely well broken in with some wisdom?
I've learned that a good baseline is Ultrasonic 15 min every 2 hours and evaporative cool mist 30 minutes every hour for two hours.
I also set the ultrasonic to occasionally mist everything a little heavier- twice a day (noon and midnight), it kicks on for 15 minutes every hour.
Other than that, the casing layers and mushrooms really tell me how my conditions are.
Quote:
quadracer said: Frank, what kind of timer are you using to alternate the humidifiers?
Just a standard electrical timer for the evaporative cool mist. I use a hydro timer for my ultrasonic, I needed 15 minute intervals and not 30.
Quote:
blindingleaf said: I'm mainly worried about what happens when u get a contamination in there, trich, vert, whatever. after taking out the affected substrate, do u just zip it back up? or what? also, what do u do in between runs? say u are not going to use it for a month or so after is has been used, do u dry it out, wipe it down, etc, and then repeat before using again?
Contam'd subs get removed and life goes on.
You probably won't see many contams unless your procedures are failing (spawn, pasteurizing, etc), the FAE this setup provides is massive and the RH ideal.
When I had it down for six months, I simply opened the front up and lifted the door over the top so it was open. I cleaned my humidifiers out and let it sit.
No need to worry too much, I promise. This sits in my unfinished basement, it is far from clean and I have had zero issues.
Quote:
EcstaticTrance said: I have a problem maintaining stable relative humidity.
See what I wrote in this post (above).
Don't worry about your ambient RH too much. I don't even check mine anymore to be honest. The casing layers and/or substrates need to be keep moist, that is the job of the ultrasonic. The humidity at the surface of the sub will be fine as the moisture evaporates off in between ultrasonic cycles.
I honeslty found everything to be too wet at 15min every hour for the ultrasonic.
Edited by FrankHorrigan (02/26/14 10:28 PM)
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blindingleaf
blue collar underworld



Registered: 07/19/13
Posts: 22,008
Loc: sub-surface unseen
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thx dude!!
-------------------- A few thoughts on cultivation MICROBIAL HUSBANDRY!!!! The whole is greater than the sum of its parts
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RandomFX
protege



Registered: 12/02/13
Posts: 1,015
Loc: North-East, USA
Last seen: 5 years, 2 months
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ya, I'm running a wellington bucket, without a humidifier, just in a one shelf GH frame with a large garbage bag covering it, and a small square of perlite, where I manually mist it periodically, and the whole thing is sitting on top of open bin. (which means about 4-5" on each side is hanging over it and open totally. with a small vent cut in the top maybe 3" wide. and I now have tow of the holes with clusters coming out, and two more I can visibly see clusters about to come out. the humidity inside the house at the moment is about 23% it isn't huge inside the chamber either honestly. but it does drastically fluctuate as I mist. and you can bet it has massive FAE. It surely depends on the species, but I think too many people pay too much attention to RH, and not enough to surface humidity fluctuations which I think personally might 'lift' hyphae as it is being formed causing it to hook and cause primordia.but I haven't researched it or studied it enough to really have a clue yet, it is just a out of blue theory.
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mushrume man
Sadis Factory



Registered: 11/18/08
Posts: 375
Loc: PNW
Last seen: 2 years, 1 month
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Re: Frank's easy mini-GH tek [Re: RandomFX]
#19674841 - 03/10/14 04:28 AM (9 years, 11 months ago) |
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Frank, could you post the dimensions of your greenhouse cover? I'm having a hard time finding one that will fit two wire shelves
--------------------
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Jot



Registered: 10/25/13
Posts: 1,194
Loc: East of the Cascades, Wa
Last seen: 4 years, 4 months
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Hey Frank how much does it cost in electricity to run the humidifiers and the lights?
-------------------- The goal of spiritual life is not altered states, but altered traits
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aykaye47
Shroomerys Gangster


Registered: 03/19/14
Posts: 1,667
Last seen: 1 year, 3 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#21127813 - 01/16/15 03:05 AM (9 years, 1 month ago) |
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Quote:
FrankHorrigan said:
Quote:
joeydimes said: Frank,
I see your trays are aluminum containers lined with garbage bags. Now do you cover those before fruiting after you add the spawn and substrate mixture together to let them consolidate?
Yes, I cover the trays with foil or press-n-seal, whichever is laying around. I poke 5-6 small holes in the cover for GE.
Then they are cased and fruited immediately once 100% colonized.
do you colonize in the same greenhouse with same conditions as fruiting?
-------------------- "Don't mistake my kindness for weakness. I am kind to everyone, but when someone is unkind to me, weak is not what you are going to remember about me"
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johnnytheswede
Knowledge seeker



Registered: 08/29/14
Posts: 436
Loc: Sweden
Last seen: 8 months, 6 days
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#21166719 - 01/23/15 09:53 AM (9 years, 1 month ago) |
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Hi Frank,
Thank you for the excellent write up. I am very inspired.
However, I have a 3-tier GH and I do not wish to take space away from trays and jars by having the FAE-humidifier inside so I figured I'd have an external FAE contraption. When you say "Tons of FAE", what orders of magnitude are you talking about more precisely, could you express it in cubic feet per minute or cubic meters per hour? I am doing a self-made humidifier (aquarium pump with bubblers in a vessel + fan(s)) and I need to know how big a fan (or fans) I need. (I will probably keep the ultra inside the GH though.)
Kind regards Johnny
-------------------- Just learning to cultivate mushrooms, immensely impressed by Paul Stamets ("Pair up with Fungi!") and the knowledge and helpfulness at The Shroomery. Concentrating on Gourmet and Medicinal Mushrooms: Reishi, Shiitake, Garden Giant, Lion's Mane, Turkey Tail. Acronyms (for noobs like me): http://www.shroomery.org/forums/showflat.php/Number/5875173#Post5875173 Have opted out of rating system because of personal reasons, read my bio if you are interested in why. (I opted out before receiving or giving any ratings, meaning no offense to anyone.)
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johnnytheswede
Knowledge seeker



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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#21633388 - 05/04/15 05:12 AM (8 years, 9 months ago) |
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Hiya Frank,
Thank you for a great thread. However, some ultrasonic humidifiers might have sensitive electronics, I put my UH inside the GH as you suggested and it quit working after a while. I took it out of the GH and after a couple of days it started working again. Like you, I also don't like cutting the plastic (because the cuts tend to be bigger and bigger) however, I have now cut the GH plastic and I am piping in the vapor from the UH (which now is placed outside of the GH) and it has been working fine ever since.
It is great that having the UH inside the GH works for you, however, if you have the time maybe you could update the OP with a reference to my experience, it is particularly good to know that if the UH breaks down, there is a good chance that it will start working again given a few days of drying out the electronics, this is what I believe anyhow.
Kind regards Johnny
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RandomFX
protege



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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: johnnytheswede]
#21637687 - 05/05/15 12:11 AM (8 years, 9 months ago) |
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I think you got lucky with it starting to work again. moisture and electronics do not mix...doesn't take a genius to know that frankly. However, that being said, it also doesn't mean some humidifiers are actually sealed fairly well and have plastic housing with vent holes to allow air in to cool the electronics....if one were to seal a hose or some other similar method around the vent and have that lead away from the GH's humidity you would probably be ok. you just shouldn't have it operating in a super high humid environment. I believe most say not to operate in anything above 80% or some such. "Tons of FAE" really depends on the type of mushroom you are growing. oysters for instance enjoy a real lot of FAE I think, and grow nicely when they have it.
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johnnytheswede
Knowledge seeker



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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: RandomFX]
#21638076 - 05/05/15 03:32 AM (8 years, 9 months ago) |
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Thank you for your reply.
Yes, I can understand what you are saying. As I have now cut my GH, I will continue to pipe the humidity in however.
Kind regards Johnny
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Cheebo
Earthling
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#21748878 - 06/01/15 02:41 PM (8 years, 8 months ago) |
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Excellent tek thanks for shsrig
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uninc4life2010
Unincorporated



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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#22026581 - 07/31/15 11:21 PM (8 years, 6 months ago) |
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Two questions:
1: Where can I buy that plastic greenhouse cover that goes over both of your wire racks?
2: Does the evaporative humidifier have some type of fan in it? I noticed that the curtains are peeled back around where it sits in the greenhouse. Does it have a built in fan that is pushing old air out of the GH for FAE purposes?
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lews2000
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#22697112 - 12/25/15 12:22 AM (8 years, 2 months ago) |
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Awesome replying to find this again easily
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lews2000
Stranger


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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#22699294 - 12/25/15 06:36 PM (8 years, 1 month ago) |
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I like your setup. Question. I use an infrared sw ultraviolet light in my flow hood and was wondering if you see any benefit or opposite of building a structure around the water holding tank oh humidifier with the uv light keeping the water clean?
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George Sears
43rd President of the US


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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: lews2000]
#22699668 - 12/25/15 08:30 PM (8 years, 1 month ago) |
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Lol

We haven't seen Frank in here in a while man.
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cronicr


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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: lews2000]
#22699928 - 12/25/15 09:49 PM (8 years, 1 month ago) |
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Quote:
lews2000 said: I like your setup. Question. I use an infrared sw ultraviolet light in my flow hood and was wondering if you see any benefit or opposite of building a structure around the water holding tank oh humidifier with the uv light keeping the water clean?
The water gets changed enough it really doesn't matter
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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bodhisatta 
Smurf real estate agent


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Loc: Milky way
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: cronicr]
#22700232 - 12/25/15 11:26 PM (8 years, 1 month ago) |
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This or dial in monos would make a good stickey of the week sometime
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cronicr


Registered: 08/07/11
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: bodhisatta]
#22700236 - 12/25/15 11:26 PM (8 years, 1 month ago) |
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--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,890
Loc: Milky way
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: cronicr]
#22700858 - 12/26/15 07:53 AM (8 years, 1 month ago) |
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screw RH
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Psilosoulful
Registered: 09/05/14
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: bodhisatta]
#22703546 - 12/26/15 10:39 PM (8 years, 1 month ago) |
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tbagtag
Boomer Barron

Registered: 01/16/13
Posts: 1,432
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: cronicr] 1
#22704279 - 12/27/15 05:32 AM (8 years, 1 month ago) |
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Quote:
cronicr said:
Quote:
lews2000 said: I like your setup. Question. I use an infrared sw ultraviolet light in my flow hood and was wondering if you see any benefit or opposite of building a structure around the water holding tank oh humidifier with the uv light keeping the water clean?
The water gets changed enough it really doesn't matter
Hand spray twice a day with a small pull fan and you won't need the humidifier. The bricks create a ton of humidity on their own when properly hydrated.
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bornhula
Stranger


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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: tbagtag]
#22812718 - 01/22/16 09:08 PM (8 years, 1 month ago) |
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Don't know where FrankH went, but this looks great.
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disassembler
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#22939706 - 02/24/16 02:43 AM (8 years, 23 hours ago) |
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Quote:
4) Slits. I don't like cutting up my GH 
5) Piping in the humidifiers from the outside. I've found it unnecessary and a pain in the ass.
How will humidifiers feel in such high RH? Anyone has experience? They are electric devices and I suppose there may be problems with contacts etc when RH is such high.
Can I use ultrasonic humidifier inside greenhouse? How long will it work? :-)
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SHJ
Second hand Jesus


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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: disassembler] 1
#22939713 - 02/24/16 02:53 AM (8 years, 23 hours ago) |
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Quote:
disassembler said:
Quote:
4) Slits. I don't like cutting up my GH 
5) Piping in the humidifiers from the outside. I've found it unnecessary and a pain in the ass.
How will humidifiers feel in such high RH? Anyone has experience? They are electric devices and I suppose there may be problems with contacts etc when RH is such high.
Can I use ultrasonic humidifier inside greenhouse? How long will it work? :-)
I guess they were made to work in high RH... But never used one so I don't know
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johnnytheswede
Knowledge seeker



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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: SHJ]
#22964481 - 03/02/16 05:09 AM (7 years, 11 months ago) |
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Mine broke, it stopped completely. But then, as the circuitry dried out it started working again, almost, it now only runs on max effect which is too much, but better to have too much than too little (I guess).
So I ended up piping in humidity anyway.
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johnnytheswede
Knowledge seeker



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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#23464827 - 07/22/16 03:12 AM (7 years, 6 months ago) |
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Hi Frank,
Thank you for your informative thread.
However, I recently read another post in another forum and there was a guy who put his humidifier inside his terrarium only to find that his home had actually burnt down.
I did use the strategy of having the humidifier inside the fruiting chamber also but it eventually ruined the humidifier. (It recovered after I had it oursite though.)
Maybe this is worth considering.
Kind regards Johnny
-------------------- Just learning to cultivate mushrooms, immensely impressed by Paul Stamets ("Pair up with Fungi!") and the knowledge and helpfulness at The Shroomery. Concentrating on Gourmet and Medicinal Mushrooms: Reishi, Shiitake, Garden Giant, Lion's Mane, Turkey Tail. Acronyms (for noobs like me): http://www.shroomery.org/forums/showflat.php/Number/5875173#Post5875173 Have opted out of rating system because of personal reasons, read my bio if you are interested in why. (I opted out before receiving or giving any ratings, meaning no offense to anyone.)
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ghaleon
Stranger
Registered: 10/12/16
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: johnnytheswede]
#24947393 - 01/28/18 01:44 AM (6 years, 27 days ago) |
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Quote:
johnnytheswede said: Hi Frank,
Thank you for your informative thread.
However, I recently read another post in another forum and there was a guy who put his humidifier inside his terrarium only to find that his home had actually burnt down.
I did use the strategy of having the humidifier inside the fruiting chamber also but it eventually ruined the humidifier. (It recovered after I had it oursite though.)
Maybe this is worth considering.
Kind regards Johnny
Perhaps the guy had other electronics inside his greenhouse. It's a bad idea to have electronical components inside a high humidity environment. In this video tutorial this guy has a fan inside of his martha. Following his tek the fan will probably stop working after a week or two in operation:
Here's a quote from RR regarding the subject:
Quote:
RogerRabbit said: The inside of a cool mist type humidifier is always at 100% humidity because of all the mist flying around in there. You can run a cool mist, such as the vicks kaz models inside the greenhouse without problems. I've done so for years and wouldn't recommend something that wasn't safe. I'm an electrical engineer, as well as licensed journeyman electrician, so am qualified to make that determination.
There is no reason to run any other electrical device inside a greenhouse. The timer(s) should be located outside the greenhouse. Computer fans are made for computers, which stay dry. They're not suitable for a high humidity environment the way humidifiers are. RR
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Tweedledee

Registered: 07/18/09
Posts: 50
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: ghaleon]
#24974773 - 02/07/18 06:13 PM (6 years, 16 days ago) |
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Has anyone used this mini-GH style with long term success? I just set one up and want to confirm I don't have to worry about my ultra-sonic getting fried.
Also, is a plastic sheet on the bottom sufficient to stop water/condensation from leaking out and onto the floor or should I find a tub to set the entire GH in?
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Asura
Cyantist


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Loc: Texas
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: Tweedledee]
#24974785 - 02/07/18 06:16 PM (6 years, 16 days ago) |
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I don't know where to get them, but the person that originally taught me how to grow had a mini-GH and he had a bus tub that was big enough to set the whole thing in.
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: Tweedledee]
#24974857 - 02/07/18 06:39 PM (6 years, 16 days ago) |
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Quote:
Tweedledee said: Has anyone used this mini-GH style with long term success? I just set one up and want to confirm I don't have to worry about my ultra-sonic getting fried.
Also, is a plastic sheet on the bottom sufficient to stop water/condensation from leaking out and onto the floor or should I find a tub to set the entire GH in?
I had mine for years
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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Tweedledee

Registered: 07/18/09
Posts: 50
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: cronicr]
#24975013 - 02/07/18 07:19 PM (6 years, 16 days ago) |
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Quote:
cronicr said:
Quote:
Tweedledee said: Has anyone used this mini-GH style with long term success? I just set one up and want to confirm I don't have to worry about my ultra-sonic getting fried.
Also, is a plastic sheet on the bottom sufficient to stop water/condensation from leaking out and onto the floor or should I find a tub to set the entire GH in?
I had mine for years
What timings did you use for your ultrasonic and cool mist? Its pretty dry here so I'm planning to run my cool mist on low every 30 min and run the ultrasonic for 30 minutes every 2 hours. Does that seem reasonable?
I don't have a 15 minute timer so I can't follow Frank's intervals exactly and I'm worried that if I run the evaporative cool mist 24/7 things are going to get pretty dry.
Not sure how much it matters but I'm fruiting Shiitake right now, not sure if they would prefer the FAE or RH to be maximized.
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cronicr



Registered: 08/07/11
Posts: 61,436
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: Tweedledee]
#24975074 - 02/07/18 07:42 PM (6 years, 16 days ago) |
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I use my coolmist for fae do the intake is outside the gh and it runs 24/7, thos alone gets me over 60 % rh snd over 75 once my subs are in.
I then turn on the ultrasonic...this is my muster do i time how long it takes to get the chamber up to 92ish rh, say 10 to 15 minutes this slso puts nice beads of moisture in my subs.
I then time his long it takes for those beads of moisture to evaporate, sometimes this can be say 2 hours.
So now i know i want yo set my timers up so my ultrasonic comes on for 15 minutes every two hours.
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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ghaleon
Stranger
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: cronicr]
#25055617 - 03/11/18 05:54 AM (5 years, 11 months ago) |
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Quote:
cronicr said: I use my coolmist for fae do the intake is outside the gh and it runs 24/7, thos alone gets me over 60 % rh snd over 75 once my subs are in.
I then turn on the ultrasonic...this is my muster do i time how long it takes to get the chamber up to 92ish rh, say 10 to 15 minutes this slso puts nice beads of moisture in my subs.
I then time his long it takes for those beads of moisture to evaporate, sometimes this can be say 2 hours.
So now i know i want yo set my timers up so my ultrasonic comes on for 15 minutes every two hours.
When I first did my greenhouse I had the ultrasonic on a timer, every 1 hour on for 15 minutes. The surface on my substrate looked like this:
Quote:
ComebackKid said: It's benificial for the pinset to have beads of moisture on the sub surface during its development. You will notice as the pins grow they use up the water supplied by the beads.
     
I got really worried because it seemed a bit excessive to have all of that water (even though the guy I quoted seems to not have a problem with it). Now I cut it down to every 2 hours on for 15 minutes. Can't seem to get moisture right. It's either too little or too much.
Edited by ghaleon (03/11/18 05:59 AM)
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ninono
Stranger
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: ghaleon]
#25055783 - 03/11/18 08:50 AM (5 years, 11 months ago) |
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Hmm, same here I also have moisture problems
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ghaleon
Stranger
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: ninono]
#25059884 - 03/13/18 06:39 AM (5 years, 11 months ago) |
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I can't believe this girl keeps BOTH her cool mist and ultrasonic on 24/7. That's....a bit much, no?
Quote:
HippieChick said:
Quote:
Blutjager said: OK after all this talk of successfully fruiting uncased substrate I decided to give it another go and I put two in the greenhouse this morning despite the lousy experience I had last time I tried it out uncased.
I know that it basically should be treated as a huge cake and a humidity of near 100% should be maintained at all times,I do not have an ultrasonic,what are my chances of getting the humidity in my greenhouse that high with just a cool mist and a huge tub or moist perlite on the entire bottom shelf,
How often should this thing be misted,I know better than to let water pool on the surface but with nothing holding in any moisture I just don't want it to end up like last time,I know there are a few people here who have had success in the greenhouse uncased,I guess my question is if anyone has done it with out an ultrasonic or am I going to have to go and buy one tomorrow.
Also I know that wax paper can be used to hold humidity close to the surface for a better microclimate,this didn't seem to work for me last time ...ANY advice is appreciated
I've had good results with just a cool mist , but an ultrasonic will really make a difference when fruiting uncased . I leave them both on 24/7 .
My GH is pretty foggy



Here's something else I do to help things out . I took some of RR's advice about perlite trays and added the verm I used to set the cakes on and now set them on a 50/50 mix of verm and perlite



The verm holds water that the cake can suck up while the perlite will let some wick back into the air to help maintain the humidity . If the verm seems dry , I just add tap water
I'm not having any problems getting pins



That's going to be one hell of a first flush
Peace,Love,Happiness and Harmony Hippie Chick
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Soulsearchin2018
Noob

Registered: 03/20/18
Posts: 47
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#25208386 - 05/16/18 04:17 PM (5 years, 9 months ago) |
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Looks like people are still updating this thread. I need some help dialing in my GH. I have a good heat source which also gives me good humidity however I don't think I am getting good FAE. Reading through this it looks like people are using a cool mist humidifier for FAE but because I already have good humidity I'm worried that this will create too much humidity. Additionally I would put the cool mist in the GH with no opening so I'm not sure where the fresh air will; come in through unless I cut some holes in the greenhouse and fill them with a synthetic filter disc or polyfill.
Here is a picture of the set up now. Can anyone help me on the FAE issue.

Thanks!
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: Soulsearchin2018]
#25208742 - 05/16/18 07:02 PM (5 years, 9 months ago) |
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Hey all
So if we thought of the GH in monotub terms
The ultrasonic is basically misting your casing/substrate The cool mist is your passive FAE
So if your casings are too moist after the ultrasonic kicks on, decrease the frequency of the ultrasonic cycles.
If you run the cool mist 24/7 you have a baseline of maximum FAE in your GH. So modifying the ultrasonic timings is the way to go.
You will find a good balance. A casing layer is hugely beneficial in the Gh. Gives you more wiggle room with ultrasonic cycles, be it too moist or too dry
Edited by FrankHorrigan (05/16/18 07:08 PM)
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Soulsearchin2018
Noob

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#25210388 - 05/17/18 01:39 PM (5 years, 9 months ago) |
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So I thought of using an air booster and plumb it up to the outside to solve the FAE problem.
Has anyone ever used this set up?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Soulsearchin2018]
#25212178 - 05/18/18 09:40 AM (5 years, 9 months ago) |
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Quote:
Soulsearchin2018 said: So I thought of using an air booster and plumb it up to the outside to solve the FAE problem.
Has anyone ever used this set up?

Lotta work, have you read the OP?
The cool mist can sit at the base with the intake facing out through the slightly unzipped doorway.
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Soulsearchin2018
Noob

Registered: 03/20/18
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#25218908 - 05/21/18 03:07 PM (5 years, 8 months ago) |
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Quote:
FrankHorrigan said:
Quote:
Soulsearchin2018 said: So I thought of using an air booster and plumb it up to the outside to solve the FAE problem.
Has anyone ever used this set up?

Lotta work, have you read the OP?
The cool mist can sit at the base with the intake facing out through the slightly unzipped doorway.
What is the OP?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Soulsearchin2018]
#25219498 - 05/21/18 08:12 PM (5 years, 8 months ago) |
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Original post
First post in this thread
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Soulsearchin2018
Noob

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#25220756 - 05/22/18 12:12 PM (5 years, 8 months ago) |
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OK I see it. The only potential issue I see is that my doors don't zip at the corners so I'll have to angle the cool mist differently. I've recently cut out 3 squares into the left side of the GH and taped and glued synthetic filter discs to cover them for more FAE. I've noticed the humidity drop down after I did this so I am assuming that I am now getting more fresh air in there and my idea of ducting a booster fan might not be needed. I've started turning on my humidifying system which consists of a mason jar, an air stone, and a tube that goes from the bottom of the so I have to see how that is going to affect things as well.
I have a few more days before my jars are birthed so I'm getting a bit nervous about having this all set up correctly before the cakes come.
Appreciate the advice.
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Soulsearchin2018]
#25223098 - 05/23/18 12:57 PM (5 years, 8 months ago) |
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Honestly SS2018 I'd recommend an SGFC if you are fruiting BRF cakes. Due to their size they will probably dry out quickly. You can also a brick of coir and some vermiculite and some baking trays to spawn the BRF cakes to. If you put a casing layer on the substrate it will give you more room to work with RH and FAE while you dial in the GH  I'd recommend the cool-mist + ultrasonic combo in the original post if you are going to do trays.
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Soulsearchin2018
Noob

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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#25223383 - 05/23/18 02:53 PM (5 years, 8 months ago) |
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Thanks Frank. I might have to bite the bullet and get those two pieces you're talking about. I rushed in and bought a grow kit that was pretty pricey so I'm trying to hold off on any more expenses for a while but it is what it is.
Can you give me some advice on these cakes from this other thread I posted:
https://www.shroomery.org/forums/showflat.php/Number/25222414
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Soulsearchin2018]
#25224084 - 05/23/18 08:06 PM (5 years, 8 months ago) |
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Done, but I don't think those cakes are alright sadly
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Bigurt
Stranger
Registered: 06/07/18
Posts: 2
Last seen: 5 years, 7 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#25296897 - 06/28/18 12:16 PM (5 years, 7 months ago) |
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Hi all! Been reading and learning for the better part of a year. Lots of good info on this forum. Here goes for my first post!
Frank, What size are the racks you're using and where did you get the greenhouse plastic to fit over them both?
Currently using a mini greenhouse and it's much smaller. Looking to upgrade my space.
Thanks in advance
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Bigurt
Stranger
Registered: 06/07/18
Posts: 2
Last seen: 5 years, 7 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Bigurt]
#25297122 - 06/28/18 02:09 PM (5 years, 7 months ago) |
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Ignore my stupid first post. I somehow managed to skip over the part where you explain exactly what I was looking for lol!
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mbproton
Stranger

Registered: 11/10/19
Posts: 2
Last seen: 4 years, 3 months
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Re: Frank's easy mini-GH tek: quit worrying about RH! [Re: FrankHorrigan]
#26316568 - 11/12/19 07:40 PM (4 years, 3 months ago) |
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Thanks for the info!
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