You ever been doing something for a long time ( like I've been using BHO constantly for the last 1 and 1/2 years ) then you realize omg where is all that oil going? I swear to gud maybe I'm just high and making up shit to be worried about, but maybe not My lungs feel good. My old oil rig is a reg bong with water. But looking at my bong I see the weirdest oil globs coming out of it. I have a reclaim catcher and I been cleaning it for the last year, you know those big tar balls that got to be cleaned out. anyway I stopped using water with my Sublimator using it like an e-nail cause the BHO tasted better without water. Hell I've even hit directly off the down stem for some "suicide hits" that were very intense. Today using the old rig I started wondering. Was the water holding all that wierd tar from entering my lungs? Then I think about these tiny oil rigs? Is that why people have them? Should there be some water filtration between me and the BHO?