It's not entirely important either way if you drill 3 small holes through the top by each netpot and run a zip tie through the netpot and your hole on the top. If you aren't going to fasten with zip ties I would make the hole 1/8 to 1/4 inch smaller than the netpot for a snug fit. Gary's got a...
Not really man when you take into account how much thought and time it would take you. You could probably build it for 375 bucks. He's really not making that much on them I don't think. Guy seems like an honest dude. He has a whole hour video showing you how to build it.
I settled on the QB style after cruising forums like these. Mine was for a 4x4 rdwc setup but a 2qb light easily flowers a 3x3. That 4qb light could flower 5x5 I hear.
I recently purchased a fallponics rdwc system from Gary at PA hydroponics. I spent about three months searching for a good hydroponic system. I watched a lot of garys videos on YouTube and he seemed to know a lot about hydroponics in general. I haven't received the system yet but I was wondering...