Chamber, valve, ball bearing????
My wife and I have been smoking around Orlando on 2 hose hookahs. On some pipes we have to put a thumb over one hose in order to not draw air from the other hose. Is there a way to know which hookahs have this option to not draw air from one hose while drawing from the other?? We want to buy one but no one ever tells us this. Are we dealing with a realistic option or will we just get lucky? HELP!