I dive in 110' of water off NC , searching for megalodon teeth,I just recently got in a situation where after being down for a few minutes i switched to my 2nd tank to complete my dive,i use my first tank with remaining o2 from previous dive for decent then switch to fresh tank to complete dive,but when I switched i got nothing,and only had a few breathes in old tank.lucky i don't panic easily and was able to breathe off my buddy and surface surface.rubbr oring failed.,,😅😅😵💫
