Explosive pop from octo

[fisherdvm]

My son and I were practicing ooa and sharing octos. He was using a genesis reg that was just serviced. When I take a breath off it, an explosive pop occured. Didn't caused any harm, but surprised me. Happed 2 times that we did the drill. My sherwood didn't cause any noise. We were doing it at less than 3 feet from the surface.

Is this normal? Is it depth dependent? It breathed fine out of the water, and after that first breath (that made the pop).

 

[DeepBound]

What kind of explosive pop was it?

 

[Archangel]

just got it serviced. . .there is the culprit. Take it back and choke the guy who serviced your reg. Them make em' rebuild it in front of you.

NEVER take a rig diving that was just serviced. . . pool ALWAYS first

Rant over,

T

 

[Garrobo]

What Archangel said. I bought a reg from a friend who had recently had it serviced and hadn't used it. I hooked it up to a tank and it free-flowed right off the bat.

 

[Charlie99]

My son and I were practicing ooa and sharing octos. He was using a genesis reg that was just serviced. When I take a breath off it, an explosive pop occured. Didn't caused any harm, but surprised me. Happed 2 times that we did the drill. My sherwood didn't cause any noise. We were doing it at less than 3 feet from the surface.

Is this normal? Is it depth dependent? It breathed fine out of the water, and after that first breath (that made the pop).

Put an IP gauge on the reg and see if it locks up at the normal IP.

When I've had a slight 1st stage creep problem, it sometimes showed up as a sudden "pop" on my Dacor Vyper octo. The Atomics B1 2nd stage is better balanced and pretty insensitive to increased IP, but the Vyper would release the built up pressure in the hose as a little "pop". The problem wouldn't repeat unless I left the system idle for a while. I didn't have an IP gauge handy, but my guess is that the 1st stage would creep up a ways and then lock up at a higher than normal IP. Once I started the octo flowing, the excess pressure would suddenly bleed off.

By the time I did another 20 dives or so and got back from my trip and checked IP, the creep has gotten worse and would continue upward to the point where it would eventually cause the octo to slightly freeflow, so it's just a guess about the 1st stage creep up a bit and then locking up at a higher IP.

Charlie Allen

p.s. My B1 originally had IP creep problem every 75 dives/100 hours or so, but since getting the B1 piston upgraded to the same jet piston used in the B2 it has worked nicely for 2 year / 150 dive / 200 hour intervals between servicing -- so don't take my comments above as a complaint about Atomics.