LMichWreckDiver
Registered
Silicon absorbs fumes, fuel, oil, grease and food. That $10. mouthpiece served its lifetime 3 times over. The exhaust valve if its the same age should replaced also. Make sure all new parts are O.E. for any pc. of gear.
Mouthpiece tears and silicone mouthpieces
- Thread starter John C. Ratliff
- Start date
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OP
Thanks for the information everyone.
I took the silicone mouthpiece that I found still attached to my Sherwood regulator with the tear into the water last Sunday. Our pool has a special session for kayak/canoe/scuba on Sunday mornings. I dove it to 18 feet (it's a competition diving pool too), and had no problem with the tear at about 1/4 inch. It leaked a few bubbles is all. I could not get it to leak water into the regulator, only air out the hole when I was vertical. I then took the regulator out of my mouth, and tore the mouthpiece all the way across the top, and down one side so that there was a huge hole in the mouthpiece. When I was vertical, again all I got was a lot of air coming out of the hole, but no water coming in. I was able to push the tear closed with one hand and get decent air flow without too much leaking of air. It was only when I went upside down that I got mostly water. This placed the tear below the diaphragm, and the water down where the breathing is occurring. Here, it was at least 1/2 water.
This leads me to believe that the mouthpiece tear described in The Last Dive by Bernie Chowdhury probably wasn't the real reason for abandoning decompression that it was made out to be in that book. Unless, of course, Chrissy was upside down on the decompression line.
SeaRat
I took the silicone mouthpiece that I found still attached to my Sherwood regulator with the tear into the water last Sunday. Our pool has a special session for kayak/canoe/scuba on Sunday mornings. I dove it to 18 feet (it's a competition diving pool too), and had no problem with the tear at about 1/4 inch. It leaked a few bubbles is all. I could not get it to leak water into the regulator, only air out the hole when I was vertical. I then took the regulator out of my mouth, and tore the mouthpiece all the way across the top, and down one side so that there was a huge hole in the mouthpiece. When I was vertical, again all I got was a lot of air coming out of the hole, but no water coming in. I was able to push the tear closed with one hand and get decent air flow without too much leaking of air. It was only when I went upside down that I got mostly water. This placed the tear below the diaphragm, and the water down where the breathing is occurring. Here, it was at least 1/2 water.
This leads me to believe that the mouthpiece tear described in The Last Dive by Bernie Chowdhury probably wasn't the real reason for abandoning decompression that it was made out to be in that book. Unless, of course, Chrissy was upside down on the decompression line.
SeaRat
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