[Puzzdre]

there's no way in heaven that that fan will even move when under water! 7 blades, pretty angled, low power...

utabintarbo:

only way to make this fans useful is to put them into the tube of the bong, not necessarily on the top or side intake, just to accelerate air going up... also, I think that would increase evaporation more... the good thing is that water from the shower head wont hurt the fan...it should be working (I suppose so...)