Cavern In Doubles?

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Mike, he's obviously never had or seen anything blow underwater. :rolleyes:
OBG -- no one would screw a reg into that post because it had just finished emptying the tanks...:wink:
No, you can't account for everything. But why not take care of what you can? We use redundant everything else, I don't see a point in not using redundant air supplies even if it's "only" at the Intro level.
 
Please tell me what mechanism exists at the turning point of a cave dive to cause a tank neck o-ring to extrude.
Hope for the best, plan for the worst.
 
Then do us all a favor and concrete your house up from the inside and stay there :D

Mike, he's obviously never had or seen anything blow underwater. :rolleyes:
OBG -- no one would screw a reg into that post because it had just finished emptying the tanks...:wink:
No, you can't account for everything. But why not take care of what you can? We use redundant everything else, I don't see a point in not using redundant air supplies even if it's "only" at the Intro level.
Because the problem is non-existent and the solution to it is not to throw another one into the mix. Heck, if one o-ring can extrude, then so can two and three and four. "Thinking divers"... remember?
 
Please tell me what mechanism exists at the turning point of a cave dive to cause a tank neck o-ring to extrude.

Who cares what causes it. The point was the need to be able to isolate and that it cannot be done with a single tank.
 
Who can argue with "head in the sand" logic like that?

If there's no reason to do something... then don't do it. Could that be any more basic?
 
If anything is going to blow it is going to blow at the surface.
Would you dive doubles without an isolator? Using that logic suggests you don't need one.
 
I am quite sure that it is conceivable someone could shear their burst disk off bouncing through rocky horror but I do not see how it is relevant to a discussion on single tanks and intro divers who are not allowed in restrictions in the first place.


I suppose intro divers never hit the ceiling ? :D
 
https://www.shearwater.com/products/peregrine/
http://cavediveflorida.com/Rum_House.htm

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