Tater,
I agree that I was also hoping that it was a DIY for a bubbler vaporizer. I guess I'll just have to stick with my ghetto water pipe and keep changing the water frequently and using ice water as much as possible.
I can't tell you where to find it but the State of California released a study showing that smoking marijuana could cause lung cancer (but they also list grilled or broiled meat as a carcinogen) and other lung problems, like tobacco, but the same study clearly showed that the problems was with inhaling ANY KIND of smoke not with the THC and cannaboids. I believe that the study showed that MJ was very significantly less of a hazard than tobacco, but any smoke is hazardous, regardless of the source.
The bubbler reduces that risk because it filters out more of the by products that come from burning any plant matter, cools the air and give nearer to a pure air-THC-cannaboid mixture than even just a vaporizer.
The comment about using this with a bong, I thought most bongs had the ability to be used as a bubbler by putting liquid in it. In fact I've seen several bongs that wee made with the ability to use ice to cool the water even more.
Good smoking