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Humidification Trouble
    #25596796 -

Working on dialing this greenhouse in while my bags are colonizing.

Bucket Here


The Humidification bucket consists of 1 single disc pond fogger and a 4inch 90cfm duct fan. I've had it running 24 hours now, and I'm still under 80% humidity. Is the fan to strong? Do I just need to get a bigger fogger? Maybe a 3 disc? Looking for advice here.

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Re: Humidification Trouble [Re: foodguy]
    #25596811 -

What kind of mushrooms?


--------------------
:hypnotoad:
Making Liquid Culture :  Go insane with LC
Mushboy likes these teks : Making shroom tea
Dank Education

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Re: Humidification Trouble [Re: foodguy]
    #25596907 -

I would go with a large output ultrasonic. 

One that can really make a thick cloud in there that can leave some residue, and put it on a cycle timer.


--------------------
 

Either you repeat the same conventional doctrines everybody is saying, or else you say something true, and it will sound like it's from Neptune.  -Noam Chomsky

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Re: Humidification Trouble [Re: mushboy]
    #25596948 -

I’ll have some Kings to start, but may throw a few trays of something fun in as well.

I have an ultrasonic in there now, but it’s a single disc.

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Re: Humidification Trouble [Re: foodguy]
    #25597019 -

I would try partially blocking the intake air with a board 1st. 90 CFM is too much for that tent. That high of CFM will make the fog less effective. Then if need be put another mister in the bucket.

I don't see an exhaust fan on your tent. Without an exhaust fan running 4 to 6 air exchanges an hour. You will have a problem. You will also fill the room your tent is in with spores which is a health concern. If you have a circulation fan in the tent you can get away with fewer air exchanges.

Lastly, the humidity should be coming in low humidity rises.

https://thehouseofhydro.com/store/c2/120V_Products.html

Edited by SHROOMSISAY01 (11/06/18 07:07 PM)

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25597030 -

Is your fogger on a float? Is it sitting at the right depth?

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25597039 -

I did actually just put a piece of tape over a third of the intake. May choke it more. I do have an exhaust fan on the bottom blowing out, set on a timer, but it’s off right now while I see if the bucket can get the humidity up. Thought about building a new bucket, maybe with a smaller fan and 3 disc instead of single ultrasonic fogger.

What do you mean by low rises?

And yes, the fogger is on a float.

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Re: Humidification Trouble [Re: foodguy]
    #25597068 -

Does the fogger make lots of fog if you turn the fan off?

The difference of a few mm depth can make a big difference in how much fog those things put out. Can you adjust how deep it floats?

Also I've had some fogger discs that work fine for months, while others crap out in two or three days.

foodguy said:
What do you mean by low rises?


He's saying that humidity rises, so have it come in the bottom. But in a chamber like that, the humidity should be going where you tell it to.

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Re: Humidification Trouble [Re: foragedfungus]
    #25597080 -

Wow, wish I would’ve known that. I have it going to the top and slightly pointed up. Seems like I see so many setups like this with humidity going up top and exhaust at the bottom. Should this be reverse?

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Re: Humidification Trouble [Re: foodguy]
    #25597094 -

Depends who you ask. Humid air rises, CO2 and contaminant spores both settle down...
Realistically, in a small chamber like that with both in and out fans, the air is going to go where you make it go.

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Re: Humidification Trouble [Re: foodguy]
    #25597210 -

foodguy said:
Wow, wish I would’ve known that. I have it going to the top and slightly pointed up. Seems like I see so many setups like this with humidity going up top and exhaust at the bottom. Should this be reverse?


It is OK like you have it but you should have a circulation fan inside if you leave it like that. I see your exhaust fan now that needs to be piped outside or your room is going to be a mess with spores. Read on the health risks of inhaling spores. Once you inhale a spore it never leaves your body.

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Re: Humidification Trouble [Re: foragedfungus]
    #25597245 -

foragedfungus said:
Depends who you ask. Humid air rises, CO2 and contaminant spores both settle down...
Realistically, in a small chamber like that with both in and out fans, the air is going to go where you make it go.


All true statements. It just depends on how you look at it. In my opinion, I would have a circulation fan in there and leave it like it is. I grow oysters so a circulation fan may not be needed again it depends on what you are growing. OK, I am in the active section so I am pretty sure you are not growing oysters.

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25597787 -

I guess I should’ve put it in the gourmet, I’m growing oysters too. Exhausting outdoors is going to be difficult in this room, think I could build a filtered catch for the exhaust?

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Re: Humidification Trouble [Re: foodguy]
    #25598609 -

foodguy said:
I guess I should’ve put it in the gourmet, I’m growing oysters too. Exhausting outdoors is going to be difficult in this room, think I could build a filtered catch for the exhaust?


I do not think a filter will work. And exhausting into that room is going to make positive pressure you will have spores all throughout your house and if you have kids this is a NO NO. I am sure someone on here can help but I am not the one to ask. I exhaust outside.

If you are growing oysters you are going to need a circulation fan for sure inside the tent and I would suggest a WILLHI WH1436H Put the sensor on the intake of the circulation fan this will give you the best reading. I use high-pressure mist from a pressure washer I built. My room is 10' x 4' x 7' and this is the controller I use.

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25599234 -

I have an inkbird humidity sensor in the tent. What kind of fan do you recommend for circulation in a smaller grow like this?

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Re: Humidification Trouble [Re: foodguy]
    #25599386 -

I would use an IP 68 fan. IP is water rating you can look it up on the net.

I used this one and it is of good quality...

https://www.amazon.com/gp/product/B0149S6VEW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

You may need a speed controller but I doubt it. It will more than likely be ok running full speed. Here is the one I have...

https://www.amazon.com/gp/product/B071H2YQG5/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25599567 -

I would recommend a speed controller for the fan. An output controller for the fogger is a good idea also.  With the ability to control both, you can dial in conditions perfectly. There is no need to put a circulation fan in a green house that small.

The reason your humidity may not be as high as you would like is because there is too much air moving through the green house. A bigger fogger is not the answer. You only need about 6 air exchanges  per hour. In a small setup like yours, it doesn't take much. You could buy a fan with half the power you have now and it would probably still be too much.

Edited by WeavieWonder (11/07/18 08:35 PM)

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Re: Humidification Trouble [Re: WeavieWonder]
    #25599692 -

WeavieWonder said:
I would recommend a speed controller for the fan. An output controller for the fogger is a good idea also.  With the ability to control both, you can dial in conditions perfectly. There is no need to put a circulation fan in a green house that small.

The reason your humidity may not be as high as you would like is because there is too much air moving through the green house. A bigger fogger is not the answer. You only need about 6 air exchanges  per hour. In a small setup like yours, it doesn't take much. You could buy a fan with half the power you have now and it would probably still be too much.


If he was not growing oysters I would agree with you on the circulation fan but he is growing oysters so I would suggest a circulation fan. The fan also cuts down on the # of air exchanges he will need. Also being a small space it will build up carbon dioxide much quicker.

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25599716 -

I have similar set up, but I use a 3-disc fogger



Did you calibrate your humidity sensor?

A 1-disc fogger should be plenty for that.

Also, you need to pimp your bucket a bit. You can put one of these connectors on top (the
one on the left)

https://smile.amazon.com/gp/product/B00EZT5AQ6/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1

You fan can just sit in the connector. When you need to add water to your bucket, you can
just lift the fan up and pour it in through the lid.


--------------------
Cultivating Panaeolus cyanescens


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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25599745 -

I haven't had a chance to grow edibles in a green house yet, only outdoors. I would think that if you're exchanging the air properly, that co2 would be a non issue, and an internal fan would be unnessecary. IMO having more air exchanges per hour (to a point) would be better, not less.  Oysters require constant fresh air. Thoughts?

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Re: Humidification Trouble [Re: WeavieWonder]
    #25599871 -

WeavieWonder said:
I haven't had a chance to grow edibles in a green house yet, only outdoors. I would think that if you're exchanging the air properly, that co2 would be a non issue, and an internal fan would be unnessecary. IMO having more air exchanges per hour (to a point) would be better, not less.  Oysters require constant fresh air. Thoughts?


You are correct on a lot of points. But I don't want to type that much to go into it. If he was exchanging air 6 times an hour he would never keep the humidity at proper levels. You can lower the number of air exchanges with a circulation fan and the fan will keep the humidity the same everywhere in the tent instead of having higher humidity at the top of the tent. Oysters do not require constant fresh air they just require the air to not be stagnant. Of course, if you can have constant fresh air and keep the humidity up that is what you want to do. I told him earlier in this thread the same thing you are saying about slowing down the fan (I think you said to use a smaller fan) I told him to lay a board on the intake to slow it down to get denser fog. I am trying to help him without it costing him an arm and a leg. When I had a tent like this I either had to do 6 or 7 exchanges an hour (mister couldn't keep up at that rate) or use a circulation fan. With the fan, I could cut it down to 3 per hour. I have been running a 10 x 5 x 7 room for about a year now. So there may be some things I forgot and any insight you can help out with is welcome. I am not trying to sound like I know it all, I certainly do not. But I do know what has worked for me. I think this came from my tent my fruits are now as big as dinner plates...


Edited by SHROOMSISAY01 (11/08/18 12:45 AM)

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Re: Humidification Trouble [Re: Asura]
    #25600382 -

I like the sterlite tub you have there instead of the bucket. I'm sure I wouldn't need to fill that as often.
To be honest, I'm probably going to just build another humidification bucket, maybe with a tub like you have. I have another single disc fogger, I could just by another float, and I have room in there for the two of them in a tub like that, which would be the cheaper option. Or buy a 3 disc fogger. I'm betting even with a second fogger, having a smaller fan... say 35cfm instead of 90 would be beneficial. Right?

I have metal connection on the lid, they're just covered with gorilla tape... I wasn't going for pretty. Maybe on the next one.

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Re: Humidification Trouble [Re: SHROOMSISAY01]
    #25600918 -

SHROOMSISAY01 said:
WeavieWonder said:
I haven't had a chance to grow edibles in a green house yet, only outdoors. I would think that if you're exchanging the air properly, that co2 would be a non issue, and an internal fan would be unnessecary. IMO having more air exchanges per hour (to a point) would be better, not less.  Oysters require constant fresh air. Thoughts?


You are correct on a lot of points. But I don't want to type that much to go into it. If he was exchanging air 6 times an hour he would never keep the humidity at proper levels. You can lower the number of air exchanges with a circulation fan and the fan will keep the humidity the same everywhere in the tent instead of having higher humidity at the top of the tent. Oysters do not require constant fresh air they just require the air to not be stagnant. Of course, if you can have constant fresh air and keep the humidity up that is what you want to do. I told him earlier in this thread the same thing you are saying about slowing down the fan (I think you said to use a smaller fan) I told him to lay a board on the intake to slow it down to get denser fog. I am trying to help him without it costing him an arm and a leg. When I had a tent like this I either had to do 6 or 7 exchanges an hour (mister couldn't keep up at that rate) or use a circulation fan. With the fan, I could cut it down to 3 per hour. I have been running a 10 x 5 x 7 room for about a year now. So there may be some things I forgot and any insight you can help out with is welcome. I am not trying to sound like I know it all, I certainly do not. But I do know what has worked for me. I think this came from my tent my fruits are now as big as dinner plates...




Right on man. I'm always open to learning more about cultivation, and different ways of doing things.  Thanks for further expanding on your methods and reasonings behind those methods. I look forward to building my next green house and testing the various methods of providing ideal conditions. I will definitely keep this discussion in mind when doing so. Btw that is a beautiful oyster pic!

Edited by WeavieWonder (11/08/18 12:48 PM)

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Re: Humidification Trouble [Re: WeavieWonder]
    #25601311 -

WeavieWonder said:
SHROOMSISAY01 said:
WeavieWonder said:
I haven't had a chance to grow edibles in a green house yet, only outdoors. I would think that if you're exchanging the air properly, that co2 would be a non issue, and an internal fan would be unnessecary. IMO having more air exchanges per hour (to a point) would be better, not less.  Oysters require constant fresh air. Thoughts?


You are correct on a lot of points. But I don't want to type that much to go into it. If he was exchanging air 6 times an hour he would never keep the humidity at proper levels. You can lower the number of air exchanges with a circulation fan and the fan will keep the humidity the same everywhere in the tent instead of having higher humidity at the top of the tent. Oysters do not require constant fresh air they just require the air to not be stagnant. Of course, if you can have constant fresh air and keep the humidity up that is what you want to do. I told him earlier in this thread the same thing you are saying about slowing down the fan (I think you said to use a smaller fan) I told him to lay a board on the intake to slow it down to get denser fog. I am trying to help him without it costing him an arm and a leg. When I had a tent like this I either had to do 6 or 7 exchanges an hour (mister couldn't keep up at that rate) or use a circulation fan. With the fan, I could cut it down to 3 per hour. I have been running a 10 x 5 x 7 room for about a year now. So there may be some things I forgot and any insight you can help out with is welcome. I am not trying to sound like I know it all, I certainly do not. But I do know what has worked for me. I think this came from my tent my fruits are now as big as dinner plates...




Right on man. I'm always open to learning more about cultivation, and different ways of doing things.  Thanks for further expanding on your methods and reasonings behind those methods. I look forward to building my next green house and testing the various methods of providing ideal conditions. I will definitely keep this discussion in mind when doing so. Btw that is a beautiful oyster pic!

 

Thanks for the compliment on the oyster fruit. I am getting fruits over twice as big now. I also am getting over 125% BE so I am happy with that and I am not changing anything.

IM me and give me your post if you make one on the methods of fruiting conditions. I may get some insight. Check this out if you get a chance it may help you in the future if you decide to go bigger although it would probably work in a tent with modifications.

https://www.shroomery.org/forums/showflat.php/Number/25450089#25450089

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