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Date: Mon, 10 Feb 1997 16:04:53 +0100
From: Josep <jep@re*.es*>
To: cavers@ge*.co*, techdiver@aquanaut.com
CC: sumpdiver@ms*.co*
Subject: Second stages failures.
Hi everybody.

Last weekend I had a serious failure of both of my seconds stages
Poseidon Odin: 

I was diving solo, lying line and negociating a severe squezee at the
entrance of a sump, using side mounted tanks, when I was at 15 feet
depth and just getting out of the squezze I was breathing from my left
second stage and then it suddenly flooded and instead of air gave me
watter, then I swiched to my right second but I only could breath one
inhalation and it completly flooded again giving no air, So I held my
breath and swam to the squezze and fortunately could pass it and reach
the surface alive, only with the stress produced by the incident.

As that sump was the second from base I had to dive again the first sump
back to base, (the first sump was not long and shallow, but with zero
viz) so I had to use again my second stages, I carefully washed them and
tested ten times and they worked fine with no more failures, so I swam
back to base through the first sump with no incidents.

The only cause of that failure I think is that some sand have to be in
the second stages, the squezee in the 2nd sump was full of sand and I
was negociating it with my back on the sand floor and my face close up
to the ceiling of the descendig passage , with my seconds tied to my
neck and between my and the ceiling. May be some sand afected my seconds
while I was kitting up, but I'm very carefull with that.

Now, a buddy has told me to use some kind of nylon stockings to protect
the seconds and avoid the sand in further dives, I think it's a good
idea but, have you any other idea?

Have any of you had problems like that?

Thank's

Josep Guarro
jep@re*.es*

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