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http://forum.grasscity.com/indoor-medical-marijuana-growing/925012-air-cooled-hood-separate-carbon-filter.html

I had to put my exhaust fan on a speed controller because it is oversized for my room. So for me personally I am ok with it not being as efficient of a setup. I don't want to cut another hole in my floor for the intake to the hood so pulling air from the room rather than the attic would...

I think I will be switching my setup to 1 fan, 1 hole in the ceiling. Should reduce noise, lower the air temp running through the hood, make my ceiling look better, and I can sell the extra fan or hang onto it for a backup. I wish I would have done it this way a month ago...

I recently put together my grow room. I bought 2 inline fans & drilled 3 holes in my ceiling. Ducting comes from my attic into my air cooled hood and out of my hood back up to the attic. I also have a carbon filter hooked up to a separate hole in the ceiling which goes up to another fan in...

Hey Everyone I am trying to keep everything within the legal limit and doing my 1st grow. Question: How do I measure how much bud I've grown, both for my own curiosity and to stay under the 8oz. legal limit if a scale is indicative of intent to sell? Thanks

Mf = midnight farms (I believe)

I've heard mixed things about low humidity. I had only recently transplanted my babies so its hard to say if it was just shock that they came out of or if raising the humidity truly helped

Yep - that's the exact one I bought and I agree. It gives me great control over my room temp & humidity. Valuable little piece of gear.

Btw - this is a 10 x 15' room with a 740cfm fan

Thanks for all the replies everyone. I ended up purchasing a fan speed controller to drop the speed to 50%. The humidity rose up to about 40% so it definitely made a difference. I also put a fan near the humidifier - I was sure what effect it would have but the humidity has risen up to 48%...

I'm working on my first grow and spent a lot of time designing my room. I went with a slightly oversized exaust fan (740 cfm) which I thought was a good idea. Problem is I can't keep my room humid enough! I bought a humidifier but the exaust fan sucks the moist air right out. It usually...