Leaking burst disk in Devil's

[pdoege]

Hello -

I lost a burst disk right where the parallel lines rejoins Hill 400. I was going through the restriction there when it started leaking. I believe that is at about 750' of linear penetration. It was the last jump of the dive and I was near thirds.

I had made a very gentle bump against the ceiling. I was trying to stay out of the floor and I misjudged by just a hair.

I isolated and shut down the post, thinking that it might be reg. No dice, so I turned the post back on and started to breathe down the leaking tank.

I figured that I had plenty of air, but I was in no mood to play around. I left my reels and headed on out. Pulling and pulling and kicking. It is amazing how fast Devil's will spit you out when you try hard enough.

I blew by some poor soul on his way into the cave right before I got to the Park Bench. Sorry buddy, but I was in a rush.

I did my deep stops and deco with no incidents and left the water with about 1100PSI in the leaking tank. I have never been so happy to see my deco bottle and the clear water of the eye.

I took the tanks to CEE and we tightened up the burst disk and that solved the issue. It had just wiggled itself loose and the contact was enough to set it off. This was news to me, I did not realize that was a failure mode. I will check the tightness of the disks when I go over my gear from now on.

I spent my second dive with my little tanks pulling my reels out. I had enough fun for the day, so I called the afternoon and went home.

Peter Doege

[Angie Reim]

Nice report. Good job. So very glad you had no problems with exit and was able to diagnose and handle the problem well. Whew. I too found another failure mode a few weeks ago. I learned that all the knobs on all my tanks should be tightened often(!). Every single one of them (5 tanks) were about ready to fall off. One, in fact, did in the fill in at CEE.

[pdoege]

but I never checked the burst disks after tightening them during their annual vis and cleaning.

Peter

[REastman]

I learned this the not so fun way 3600 feet back in Hole in the Wall. There is a little nylon washer that is supposed to go in between the plug and the discs. When the discs start to deform this keeps them from leaking. If that littel washer gets put in on the wrong side of the discs they will start leaking after some good fills. It doesn't blow completely, but it leaks enough to hear it and cause some concern. Might want to check that. If this is the case, even after some tightening it may start to leak again. Of course the really bad part is you have to drain your tanks to check it.

[OFG-1]

Ryan, NEVER have a plan. Then nothing can go wrong.

Ryan.....

Plan your dive, dive your dive, and then log your plan,...err wait a minute...dive your dive, plan your log...err no...that isn't right....log your dive, dive your dive, then plan...no dang it...that ain't right either...somebody help

[John L.]

Nice report. Good job. So very glad you had no problems with exit and was able to diagnose and handle the problem well. Whew. I too found another failure mode a few weeks ago. I learned that all the knobs on all my tanks should be tightened often(!). Every single one of them (5 tanks) were about ready to fall off. One, in fact, did in the fill in at CEE.

Angie, you are so right. Bill R. showed me on the tailgate one time because I had a valve leak to pull the knobs off peridically and snug the nut on the valve. I had it leak three different times before I started doing that.

[REastman]

Ryan, NEVER have a plan. Then nothing can go wrong.

Ryan.....

Plan your dive, dive your dive, and then log your plan,...err wait a minute...dive your dive, plan your log...err no...that isn't right....log your dive, dive your dive, then plan...no dang it...that ain't right either...somebody help

<hijack>Yeah, but then what would you log?</hijack>

Back to the original thread.

[Dwain]

I to learned to remove my handles and tighten the nuts on the valve stems. Had my center post begin leaking luck would have it that I found it out during a fill.


Also had a Din o-ring go out just after doing deco an my last dive @ ginnie. I was on my way up the stairs just steped out of the water when it went. \\ Fun day.

[Tegg]

All you guys and your work... I just use JB Weld...

[DeWayne]

All you guys and your work... I just use JB Weld...

Have you tried adding some fix-a-flat to your tanks during fills? Works like a charm