First of all, I'm still pretty amazed with this...
Second, the desire for building this kinda thing is growing inside, so, pls., help me with this: is there a good, (read cheap) way to make it work without the heat excanger? Sorta direct loop to the wb with the pump? I guess with such a small percentage of water loss in the bong(s), the distilled water is pretty acceptable choice, now just to clarify the heat exchanger thingie...
Thx.
PS: airspirit, you're NUTS.

In every possible GOOD way, ofcourse...
That's why I like this forums...