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InvisibleredheadTony
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Registered: 06/12/04
Posts: 27
Loc: New York
Perfecting FAE
    #5422436 - 03/20/06 01:06 PM (17 years, 10 months ago)

There should be a whole section in the forums about FAE since I still can't find enough info on it. Mt fc looks something like this..
I've been messing around with this thing for weeks trying to get the timers perfect without drying out the casing. I've tried leaving the coolmist on 24/7 with a fan going on/off in 15 min. intervals. I've tried putting the coolmist on the timer. Nothing seems to get the perfect conditions. Any help on this would be great, especially from people that are trying to make a one coolmist work for a tub.(i know it's overkill, but why use perlite when you find a free coolmist?) (note that bottom tub in the pic is empty for decoration purposes only)
Also, i had the humidifier on for 24 hours, and turned it off last night for the hell of it, and still got a reading of "HI" 12 hours after the humid. was turned off. Should i only turn on the humid. once a day???

is there a formula out there for the output of the coolmist coinciding with the volume in the tub? and is a computer fan necessary for my operation?


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/////Invention my dear friends, is 93% perspiration, 6% electricity, 4% evaporation, and 2% butterscotch ripple.


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InvisibleCitric
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Registered: 03/19/04
Posts: 4,490
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Re: Perfecting FAE [Re: redheadTony]
    #5422475 - 03/20/06 01:19 PM (17 years, 10 months ago)

Cool mist are best ran 24/7 to provide a constant cool air exchange. They do help out with RH, but that is not there main target of focus. I run my cool mist 24/7 and have my ultrasonic come on for 20 minutes every 2 hours.

However, that is with a big martha. If you are keeping it on 24/7 what is the issue? I fruit in 95-100% RH every time w/o problems.


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Self Healing lid tek ** Update 10.17.17 **
Mini casing pictures: Pins to harvest
Cup O' Shrooms
Magash:  I noticed my contams were in the shape of fingers :whack:
Hyphae:  Yes  "Loss of moisture from the substrate"  is not a casing trigger.  :cuckoo:

My final Grow!


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InvisibleredheadTony
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Registered: 06/12/04
Posts: 27
Loc: New York
Re: Perfecting FAE [Re: Citric]
    #5422523 - 03/20/06 01:34 PM (17 years, 10 months ago)

the problem is that i dont use a martha, it's a small tub, wouldn't that be too much humidity??
also, i've been using a computer fan at the top for exhaust. and with the coolmist on 24/7 and some air exchange, it's managed to dry out my casings and i have massive amounts of overlay. i'm going crazy trying to get this damn thing perfect.


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/////Invention my dear friends, is 93% perspiration, 6% electricity, 4% evaporation, and 2% butterscotch ripple.


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InvisibleCitric
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Registered: 03/19/04
Posts: 4,490
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Re: Perfecting FAE [Re: redheadTony]
    #5422547 - 03/20/06 01:40 PM (17 years, 10 months ago)

Lose the PC fan. Air will find its way out on its own. If anything put a small hole on the bottom area and fill w/ polyfill.

You can run that bish 24/7 no prob.


--------------------
Self Healing lid tek ** Update 10.17.17 **
Mini casing pictures: Pins to harvest
Cup O' Shrooms
Magash:  I noticed my contams were in the shape of fingers :whack:
Hyphae:  Yes  "Loss of moisture from the substrate"  is not a casing trigger.  :cuckoo:

My final Grow!


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InvisibleredheadTony
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Registered: 06/12/04
Posts: 27
Loc: New York
Re: Perfecting FAE [Re: Citric]
    #5424569 - 03/21/06 10:14 AM (17 years, 10 months ago)

I just don't understand why I should loose the fan if my setup keeps the RH at 'Hi' 12 hours after I turn the coolmist off. Isn't one of the big reasons of overlay too much humidity??


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/////Invention my dear friends, is 93% perspiration, 6% electricity, 4% evaporation, and 2% butterscotch ripple.


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Invisiblemusher_420
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Registered: 08/01/05
Posts: 2,691
Re: Perfecting FAE [Re: redheadTony]
    #5424632 - 03/21/06 10:36 AM (17 years, 10 months ago)

Maybe your hygrometer is off, as in not working properly?


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My Humidifier Reservoir Expansion Tek

Must read links for beginners

Btw- You are not what you own!


Edited by musher_420 (03/21/06 10:37 AM)


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Offlinewiggles
Miffed a Milf
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Registered: 11/09/05
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Re: Perfecting FAE [Re: musher_420]
    #5424674 - 03/21/06 10:47 AM (17 years, 10 months ago)

The hygro sounds like it may be off. Calibrate it with the salt technique by:

Taking a half cup of table salt, a plastic ziploc bag, either a measuring cup or coffee cup, and some water. Put the salt in the cup, and then add just enough water to get the salt damp. You don't want it to be a solution, just some moist salt. Then place the hygrometer and the cup in the ziploc bag and seal it away somewhere for about 6-8 hours with some air trapped inside.

The hygrometer should read approximately 75% RH. If it doesn't, then your hygro is more than likely off.

A simpler way to do this is wrap the back of the hygro in a damp cloth, and let it sit for awhile (~6 hours). It should read 95% RH.

Calibrate as necessary.

As for exhausting the air, it will find its own way out thanks to pressure. I personally used one exhaust hole just above the layer of perlite in the bottom of my terrarium with some polyfill. Also, despite having a semi-automated setup, I still tried to fan fresh air over the terrarium as often as possible (whenever I could think of it, so a few times a day).

Hope this helps some :smile:


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You can turn your back on a person, but never turn your back on a drug, especially when its waving a razor sharp hunting knife in your eye.
Hunter S. Thompson


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Invisibleagar
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Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
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Re: Perfecting FAE [Re: redheadTony]
    #5424737 - 03/21/06 11:03 AM (17 years, 10 months ago)

True,

It is difficult to balance FAE & maintain an optimal Rh. FAE requires nothing more than an almost imperceptible periodic air flow. But, not so much FAE that it lowers the Rh significantly, for extended periods of time.

Because everyones set/up differs, there is no rule of thumb. You just have to go with what works for you. Which can be a true PITA figuring out, most of the time.

If your set/up has TIGHT seals. I have found a very mild positive pressure helps maintain Rh. Meaning, if you are forcing air flow in (by whatever means). The exhaust show be restricted to about 20% of the size of the air inlet & be further restricted by some sort of filtering material.

The system I use is designed like this.




I use a mini squirrel cage fan, with a variable speed control, on a timer.

Blade type computer fans will not create pressurized air flow, if RESTRICTED.
They tend to cavitate, if there is much - if any back-pressure.


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