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oh and i'll have a carbon filter.

what size should i get for a 40 cubic foot room?

Yea its a powerful inline, i talked to a few people and they said it really moves

I have a fan that is rated for 80/110cfm that will be used for my diy cool tube for 2 400 watt mh lights. Im going to have one end of the cool tube venting to just an open hole and the other end have the fan sucking the hot air out. First of all is it better to have the fan sucking or...

yea im gonna have the cool tube exaust seperate from the room exaust

I have 2 400watt mh lights that i am making cool tubes for out of bake-around tubes. I want to have both of them going to one exaust using a y connector but i dont know how i should cap off the open ends of the tube. Any help would be appreciated

I have a good electrical question... i know a good amount about electrical but need some help with this idea... if i have 2 400watt mh ballasts can i splice into the wires of one ballast before the socket and make a pigtail with two more wires running to the socket for the second light? because...

Like any other stealth grow i need it to be dead silent.... so i was thinking i would put foam insulation board up around the entire box, use some adhesive or whatever i decide would work best and put it right to the box Do you think this idea would work to soundproof the fans inside of the...

thanks... i was thinin it might be a little small

oh and theres a 52mm carbon layer thickness

My room is going to be 41.58ft3.... I am thinking of gettin a 4inch inline carbon filter that is 9 7/8" long by 7" diameter. Will this be enough to stop the smell from about 20 plants in there... my fan will be blowing 100 cfm.

yess i have been lookin for the best possible kush strain because thats definately my favorite. you get a pretty good yield off it?

yea i was reffering to the outside of the tubes.... and thats good news... does the fan need to be more powerfull since it is exausting two lights?

Ive been lookin for a new strain to try out and i figured i'd see what all the pros have liked before.... Let me know your favoritess, mine so far is strawberry cough

Im going to be making a pyrex bake around cool tube for two 400 watt hid lights.. I have 3 questions about this: 1. Can I have the two cool tubes connected with duct in the middle and then vent with the two outside ducts 2. If i can do that should i have both fans blowing one way or have...

Yea so far all ive really seen is using some duct and spray painting the inside black.... the overpowered fan should still be able to pull the right amount of air though if i manage to only make 1 or 2 bends

Thanks i was thinkin the same thing i think i'll put them at opposite sides of the room..... and yea ive used gonzo before it def works good... using a filter with gonzo in the room and theres no problem with smell. Any thoughts on the best way to stop light from escaping and coming in the...

My room is 45 cubic feet and my fan is rated for 80 cfm... would having to much air movement hurt the plants and what about placement of the exaust/intake... would it be better to have the exaust directly above the intake hole or have them at opposite sides of the room

Yea i was just looking around and one guy posted this..... The correct volume of air to move will be 1/3-1/2 of the room volume per minute. Proper air exchange should be able to take place in 3 mins. My room is a bit over 800ft3 and I use a 400cfm (dialed down to about 300cfm)fan. Perfect...

ok i think i get what your saying.... so i will need a sepreate exaust inside the box to nuetrualize the smell and create the right air flow.... that makes a little more sense..... and if my intake is 1/4 of my exaust no smell will leak out through the intake holes?