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I am a recreational diver. My dives are typically between 70ft and 100ft in 75 degree seawater. I dive single, nitrox, +/-100 cu ft, steel tanks. I always dive with a backup regulator and a partner. Years ago my dives were made with a 30 cu ft pony strapped to my single tank. I have recently quit using the ponies and I have begun to rethink the desire for using the pony. I have been thinking a lot lately about air-delivery, failure modes, between the tank and my lungs. I have read that if one were to have a free flow, that one can fold the hose over and crimp it off. Somewhat like one does a garden hose.
I have heard that primary regulator failures (the one on top of the tank), under the conditions of which I dive, are practically unheard of.
Here are the questions: I have heard o-rings pop (fail) topside, but do o-rings ever fail during a dive? Do primary regulators ever just stop working? Do hoses suddenly rupture?
I am trying to build an argument for not carrying pony bottles around in my travels.
I have heard that primary regulator failures (the one on top of the tank), under the conditions of which I dive, are practically unheard of.
Here are the questions: I have heard o-rings pop (fail) topside, but do o-rings ever fail during a dive? Do primary regulators ever just stop working? Do hoses suddenly rupture?
I am trying to build an argument for not carrying pony bottles around in my travels.