The bong water is drawn with the tubes into a second chamber and then flows back again into the 1st chamber. During the reflux, the drinking water is repeatedly enriched with contemporary oxygen, i.e. it is actually recycled. Undesirable by-solutions from the smoke are deposited about the pipe wall. In https://collinebaxu.wikiinside.com/577341/5_tips_about_grabba_leaf_yellow_cigar_wraps_you_can_use_today