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Date: Fri, 26 Mar 1999 13:50:02 +1000
To: techdiver@aquanaut.com
From: Simon L Hartley <shartley@sc*.ed*.au*>
Subject: Re: Switching regs underwater
At 23:51 24/03/99 -0500, Dave Dalton <dmdalton@ju*.co*> wrote:
>I objected on philosophical grounds (comes naturally, I have a minor in
>philosophy) that one should not subject one's life support equipment to
>unnecessary abuse just for an exercise (one could, for example, turn off
>the valve, buddy breathe while doing needle point or playing solitaire,
>whatever - why flood your first stage just for grins!) The owner of the
>shop said (with a grin), we sell Scuba Pro and this doesn't hurt our
>regs, in fact, it shows how good they are!

I was told it was the HP guage that is the real worry when flooding the
first stage, because once the water gets in there you can't get it out
easily (need to take the whole thing apart and service).  When a set of
regs goes into the tub (fresh water) without a dust cap on at the shop I DM
for the HP hose is removed and air is blasted through the first stage to
remove any water.  

I'd doubt flooding would seriously affect the functioning of the first or
second stage on a dive (would need to be properly cleaned and serviced
afterwards though).  But then I wouldn't deliberately do it to my own gear
if I didn't have to (had to replace a piston recently after sand got in and
put a nick in the knife edge).  

Simon

Simon L Hartley
RSM Unit Web Administrator\First Year Course Coordinator
Associate Lecturer
School of Resource Science and Management
Southern Cross University
P.O. Box 157
Lismore NSW, Australia 2480
Ph: (02) 66203251 or (61 66) 203 251
Fax:(02) 66212669
E-mail: shartley@sc*.ed*.au*

http://www.scu.edu.au/staff_pages/shartley/index.html

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