Today I saw a reg where IP decreased before lockup. It was bouncing back to 150 after a purge and then settling at 130.
Actually saw IP decrease before lockup
- Thread starter guruboy
- Start date
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Atomic?
Please define "lockup".
OP
Yea, atomic.
Lockup means it stops changing.
Lockup means it stops changing.
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I'm guessing from Lex's post this is not uncommon with Atomic?
Bounce? I'm guessing that this could be simple hysteresis in the gauge. Is it oil filled? Oil will dampen any fluctuations thereby reducing hysteresis to an acceptable level. Of course, I'm assuming that you aren't hearing any hissing from the second stage.
No, never seen it but I was thinking it could be some weird action with a sticky seat in the second but more likely a sticky piston or something in the seat.
Up at 0200 to go dive today, just got home so I may not be thinking clearly.
halocline
Contributor
I'd like to see a video of the gauge movement. Or at least a detailed description of what it's doing. Obviously, if there really is 150 PSI in the IP chamber and hoses, and it decreases to 130, that air is leaking out somewhere.
Jack Hammer
Contributor
Either gas is leaking out or something is moving enough to allow the gas to expand slightly. My first inclination would be to check the cracking pressure on the second.
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