Eagle's nest accident report

[formernuke]

I close mine in transit. Had a valve crack open on me in the truck and lost 1.5k of trimix out of my double 100's. Now I close it in the vehicle so if it happens again less loss.

 

[Tracy]

I close mine in transit. Had a valve crack open on me in the truck and lost 1.5k of trimix out of my double 100's. Now I close it in the vehicle so if it happens again less loss.

They make DIN plugs for that very reason. They also keep the DIN outlet round when you smash them into something.

 

[formernuke]

They make DIN plugs for that very reason. They also keep the DIN outlet round when you smash them into something.

I didn't think the plugs would actually hold back pressure, good to know.

That set was a rental set so no plugs. Mine have plugs.....

 

[Tracy]

I didn't think the plugs would actually hold back pressure, good to know.

That set was a rental set so no plugs. Mine have plugs.....

Definitely hold the pressure. I prefer the fancy ones with the bleeder so you can unscrew them without a wrench when you screw up. But most of mine are standard brass or stainless. When you crack the valve, you need a wrench to remove them.

 

[Manatee Diver]

Definitely hold the pressure. I prefer the fancy ones with the bleeder so you can unscrew them without a wrench when you screw up. But most of mine are standard brass or stainless. When you crack the valve, you need a wrench to remove them.

I have a couple dozen of the plugs with the pressure release, I think I've only been able to use the pressure release successfully a few times. I put them in all my tanks to protect the valves and because I get gas leaks all the time.

So I put a small breaker bar with the right socket in my SUV when I load tanks. I also use it for lug nuts with a different socket.

 

[Jared0425]

I just want to be clear that I am not advocating closing the isolator at any time. I just trying to figure out how people diving different mixes on different sides of the cylinder happen. In the case cited, even if it started with an isolator improperly closed, I think there had to be other problems in addition.

It was a fad when I was doing Nitrox off of North Carolina where one tank was filled with 32% for the 110' and 36% for the 75' shelf. It was a mess with hose routing though. This was back during the days of the double bladders and the 1 is none mentality.

 

[Kay Dee]

...........This was back during the days of the double bladders and the 1 is none mentality.

Pardon going OT but................what is the 'current' mentality?

 

[Vicko]

Does closing the isolator preserve gas in case of a small leak? I'm guessing that the flow is gated by the cracked valve, not total supply, and if it was leaking enough to drain both your tanks draining just one still ruined the dive for you.

 

[formernuke]

Does closing the isolator preserve gas in case of a small leak? I'm guessing that the flow is gated by the cracked valve, not total supply, and if it was leaking enough to drain both your tanks draining just one still ruined the dive for you.

Nope just recalculated thirds for a shorter dive......

The sudden unexpected storm front ruined the dive.

 

[Jared0425]

Pardon going OT but................what is the 'current' mentality?

Current practice through most technical training is promoting efficiency and quality or redundancy.

The more equipment one has the more failure points and extra time it takes to deal with the complexity of one's rig. So in short, simple and clean hose set up and minimal backup equipment.