Rudy
Admin
OK, that's the kind of tech talk that makes sense - sort of the same "sucking air" that ScubaDetective mentions. I would never do 10 meters. Let's say for the sake of usefulness that about 4-5 meters would be my maximum target depth. I am really looking for something that just covers about 8-10' snorkeling range without having to go up and down all the time. Thoughts?
From my days of skin and scuba diving when I lived in Miami: The atmospheric pressure in salt water doubles for every 11' of depth. In other words, the pressure on the surface is one atmosphere, go down 11 feet and the pressure is now 2 atmospheres.