Bob DBF
Contributor
The top of the black square is 600psi allegedly.
The black square is there to tell you it may be empty, it was.
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The top of the black square is 600psi allegedly.
No its not.The top of the black square is 600psi allegedly.
The top of the black square is 600psi allegedly.
Approximately what PSI is the pressure gauge showing?
Time to head up, is what it says.
Let SPG go to (near) zero. Then pull the rod. SPG will then show approx 250-500 psig, depending.As low as that looks, he's already pulled his J Valve and has been on Reserve for a while now.
Duh! Brain fade! I suppose this is obvious--since the SPG "sees" the pressure that the 1st stage "sees."Let SPG go to (near) zero. Then pull the rod. SPG will then show approx 250-500 psig, depending.
ETA: At least, I think this is what happens with all J valves. About to test my newest J valve (which I received earlier this week from The Scuba Museum), a knob-on-the-top U.S. Divers model that is older than my other two J valves.
rx7diver
...a knob-on-the-top U.S. Divers model that is older than my other two J valves.