BHB ScubaTroll
Contributor
You're thinking about it all wrong It's more along the lines of "How much time is everyone diving?"will most do one dive or two?
Jenny will do two dives, but will be underwater for 6-7 hours...
Walter will do 7-9 dives, but never change his tank...
Colin will be busy doing his PADI refresher course
Me... I'll be out every 1/2 hr to change out tanks