Reg Braithwaite
Contributor
I didn't want to hijack another thread, so I thought I'd post this question separately...
If you are diving doubles with a standard isolation manifold, the usual worst-case scenario is a valve malfunction that forces you to isolate the working tank and lose the remaining gas in the other.
Given that you would normally turn the dive with enough air for you and your buddy to spend a minute dealing with a failure and then return to the surface (using whatever formula you like), my question is this:
Do you plan for having that much air even if you lose a tank, in other words, that much air in each of the two tanks? Or do you live with the possibility that if your buddy goes OOA and you also lose a tank, you don't have enough gas for both of you to get home?
If you are diving doubles with a standard isolation manifold, the usual worst-case scenario is a valve malfunction that forces you to isolate the working tank and lose the remaining gas in the other.
Given that you would normally turn the dive with enough air for you and your buddy to spend a minute dealing with a failure and then return to the surface (using whatever formula you like), my question is this:
Do you plan for having that much air even if you lose a tank, in other words, that much air in each of the two tanks? Or do you live with the possibility that if your buddy goes OOA and you also lose a tank, you don't have enough gas for both of you to get home?