Quote Originally Posted by Climbing High
thats not true, THC does not stick to water, its not a water soluble material. peace
http://my.marijuana.com/pipestudy.php3

That's what I thought too, and it's logical, until I read this study.

Disappointingly, waterpipes performed uniformly worse than the unfiltered joint. The least bad waterpipe, the bong, produced 30% more tar per cannabinoids than the unfiltered joint. Ironically, the pipe with the electric mixer scored by far the worst of any device. This suggests that water filtration is actually counterproductive, apparently because water tends to absorb THC more readily than noxious tars. Like the waterpipes, the cigarette filter also performed worse than the unfiltered joint, by about 30%. Researchers speculate this is because cannabinoids are exceptionally sticky and adhere to other solids. Hence, any filtration system that picks up particulates is likely also to screen out cannabinoids.
So even though water doesn't have any fats for the THC to bond to, it still screens out more THC than tars/particulates, making it inherently ineffecient. I didn't like hearing that and it was dissapointing to me since I love bongs and bubblers, but it's a fact. Nothing outperforms regular joints/blunts.