Texasguy
Contributor
I don't know much about hookahs therefore - questions. Say, in a non hookah setup, 1st stage feels what depth you are at, giving you always a bit higher intermediate than ambient pressure at your current depth. This way you don't get free flows (from too much of intermediate) and gets you to breath without effort, let us call it - a just right of intermediate pressure. But if a hookah is at the surface, how does it know what intermediate pressure it needs to send? I guess it always sends the same pressure through LP hose (which is long and probably needs more pressure to fight resistance)? Does it mean that with hookah you can free flow near the surface? Do you need a special 2nd stage that made only for hookahs? Does anyone have any numbers on what hookah sends in LP hose and how 2nd stage works with that at different depths and different hose lengths?