Quote Originally Posted by DeeMar10
It looked like some people knew what they were talking about here so I thought I'd throw this out there to see what info I could gather :jointsmile::jointsmile:
I have a 7x9x10 room. So that 630 cubic feet

I plan on having two(2) home-made grow tanks

3x3x6 54 cubic feet x 2 = 108 cubic feet

3x3x8 72 cubic feet x 2 = 144 cubic feet

( Have not decided on the height yet so both figures are given )

From what I have gathered I need to cycle the air 1 to 2 times a min. for best results ? I want to connect both hoods together and run through one carbon filter before it goes up in the attic where I plan to have it vented towards my bathroom air drain having it pass through one smaller carbon filter in the attic before attaching it to the bathroom air vent (stink pipe?)

With this information can anyone give me a little insight on what size of can fan or vortex power fan I should be aiming for ? Or better yet what kind of CFM's I need to be pumping out!

I appreciate the input and advice! If you have a better idea or tips I will keep them all in mind.
I would just leave it vented into the attic at the soffit vent. You'll get a sewage smell in your grow as gas from the pipe your planning to use as a vent. A backdraft damper won't even help you in this situation. Hope this helped ya!

Ga Grown!