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.