Here is a drawing of the base/ resivour of my waterbong (in the design stage). There will be a elbow t (can't quite figure how to do that on autocadR14 any tips would be great). I plan to have the top vented through the exterior wall of my house, (there is an old dryer vent in my room) which would help with the humidity thing. I will have a float valve (like a toilet) in the tank to maintain the water level. There is also a cold water pipe in the same wall that I'm going to tap into. The water bong would be a secondary res/ loop for my computer & the water will pass though a radiator in the front of my case first b4 heading to the bong (4 LAN parties).