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Offlinenick_hopton
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Registered: 10/17/04
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Too much RH?
    #3597521 - 01/08/05 09:21 AM (12 years, 4 months ago)

I have just birthed 4 of my pf style brf cakes into my fruiting chamber. It has one of those pond foggers in it a layer of wet perlite in the bottom and a fan on the top for air exchange. To keep the temperature stable i am using a TIT. The problem i have is that the timer i have to turn the fan and the fogger on only goes up in 15 minute increments so i can only run the fogger and fan for a minimum of 15 minutes. the fogger produces 90ml an hour of fog. will running the fogger for 15 minutes an hour with the fan running create too much humidity? and will running the fan for 15 minutes an hour create sufficient air exchange? If it does create too much humidity how would this affect the mushrooms, would they grow funny?







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OfflinePorchMonkey321
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Re: Too much RH? [Re: nick_hopton]
    #3597801 - 01/08/05 12:08 PM (12 years, 4 months ago)

Since you're doing cakes, you don't have to worry too much about having your RH too high, worry about the other way around. Cakes like RH anywhere between 95-100%, but can handle 90%, and I've even heard of a few doing OK at 85%. 15 minutes on the hour should be just fine, but if you're worried, drop it back to 15 every two hours, if your timer allows for it. Good luck with it!


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Offlinenick_hopton
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Re: Too much RH? [Re: PorchMonkey321]
    #3597942 - 01/08/05 12:47 PM (12 years, 4 months ago)

Thks for your reply porchmonkey. Would there be any disadvantages to running the fogger and the fan constantly?


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InvisiblePrisoner#1
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Re: Too much RH? [Re: nick_hopton]
    #3598130 - 01/08/05 01:46 PM (12 years, 4 months ago)

over saturation of your cakes, its best to put it on a timer.
I ran one for an hour, off for 4 and it did very well


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OfflinePorchMonkey321
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Re: Too much RH? [Re: nick_hopton]
    #3598421 - 01/08/05 02:54 PM (12 years, 4 months ago)

Yep, agreed with P1, use your timer. I have my ultrasonic running 30 mins every 2 hours, keeps my box at 97% RH. I may even drop it back to once every three hours.


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Offlinenick_hopton
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Re: Too much RH? [Re: PorchMonkey321]
    #3598745 - 01/08/05 04:01 PM (12 years, 4 months ago)

Thanks for the replys guys. I think ill stick to 15 minutes every hour and see what happens.


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OfflineZeroArmy27
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Re: Too much RH? [Re: nick_hopton]
    #3598782 - 01/08/05 04:11 PM (12 years, 4 months ago)

if your cakes continue to grow fuzzy mycelium and don't pin, it's a good sign that they've been oversaturated... it'll look ridiculously "furry"... so that's what you should be looking for and adjust accordingly.

that's what happened to mine when set directly on perlite.


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OfflineLaughingJim
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Re: Too much RH? [Re: nick_hopton]
    #3599604 - 01/08/05 06:50 PM (12 years, 4 months ago)

Those are easy to limit fog, just put a plastic lid over the stream of water. Raise or lower it to get more/less fog.

Use a soda bottle, cut the bottle in half, use the bottom half. Then cut four 1 inch slots from where you cut it in half, to where the bottom of the label was. Flip it upside down, and use it to cover your fogger.



One more tip, switch the fan so it doesn't blow directly into the fog. That will only help scatter the heavy water drops around, adding water puddles, not humidity... Humidity is 0.1 micron and smaller, those drops are 0.5 microns (Small rain).

The cover will also stop water from splashing all over, and make your water last longer.

By the way, my fogger runs ON/OFF, 1 hour/1 hour. Gives me better control... I also use a Fish-tank pump to add fresh air, and a fan internally to push air from my fogger chamber to my multiple tanks.

Use a taller container, and deeper water if you still have problems. That will also limit fog production.


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Edited by LaughingJim (01/08/05 06:57 PM)


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Offlinenick_hopton
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Re: Too much RH? [Re: LaughingJim]
    #3602220 - 01/09/05 06:54 AM (12 years, 4 months ago)

Thanks for the reply laughing Jim. My fogger ran dry last night so i think ill try what you've suggested, I've moved the fan to the other side of the box but don't see any of the fog being moved by it like it was before, is this OK?

nick


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