Yeah, the plastic welder is a type of glue, pretty tough stuff for 7 bucks. It is made by ITW, and I got it from an auto parts store.
Have you already built yours? I would love to see some pics.
Yeah, I will have a fan encased in foam on the exit end, and a free floating fan (suspended by bungees) blowing over the lights on the entrance side of the tube. I don't know if I want to push air into thhe carbon filter, or pull through it. What do you think? I want to just start using ona, then ditch most of the carbon for improved air flow, temps, etc, etc
I didn't want to spend another 20 bucks on the wall vent, so I carved something up out of plastic for the duct to hook to. Still have a little work left, but hoping I can mount this thing with my cfl's by this weekend. I will post some pics of it cause it looks wicked dangerous now. I am glad I thought of it cause I have found that adding anything metal to these small grows increases the heat a bunch. So I try to use as little metal as possible.