Like the title states, how would I lightproof air intakes and exhausts? Im doing a stacked rubbermaid grow, so space is limited. Also, what could I attatch to a computer fan that could hold activated carbon? Thanks
An homemade carbon filter will light proof your output and if you have passive intake just click "The SurriRoom" in my sig. In the same topic look in the last post ... I talk about neoprene airleak foam to light proof the door...that work VERY well. Very versatile also. steeve
Yeah I noticed the carbon will basically hide light from escaping the exhaust. So for the intake, just use a bunch of 90* elbows or whatever? Thanks.
Yeah the light will not enter with these 90* elbows. This work only if your intake are located at the same as mine, which is on the floor. You can also use more elbow and make a labyrinth. steeve
hmm. Well they wont be on the floor, they will be on the sides, towards the bottom. can I turn the opening down and will that prevent light from getting out? Thanks
You can use 2 X 90* elbow per intake then. | | _ |_| | | | The wall in black, elbow #1 in orange and elbow #2 in blue. steeve PS : www.insidesun.com for the 150 watts HPS (but buy at least 250 watts).
A friend of mine used a tupperwear container for his filter. He filled it with carbon, cut a square hole at each end, and screwed a computer fan onto each side. He has a small 2 plant growbox, but it works great. The container he used is similar to this (his is a little bigger):
hey dierwolf, i like your simple light trap design and I was wondering if no light would enter? Could I use this design for a flowering box to allow proper ventilation while keeping a complete dark cycle.