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Date: Mon, 3 Nov 1997 22:05:51 -0500 (EST)
Subject: Re: Poseiden failures
From: adb@on*.ca* (Anthony DeBoer)
To: cavers@ge*.co* (cavers), techdiver@aquanaut.com (techdiver)
<gmirvine@sa*.ne*> writes:
> ... The
> only reaon I ever found out here waws a problem is that I left some in
> Sally Ward and the water has some fine grit that blocks the seat, so I
> changed those and they failed immediately. ...

Was that from changing regs underwater, or did the grit enter through
the back of the first stage?

Up in Canada, the dive shops tend to push the enviro kit (rubber cap and
silicone oil on the back of the first).  Maybe it was money I didn't need
to spend, way back when, because at least one other Great Lakes diver on
Techdiver said his Poseidons have never frozen up without the caps, but
the other side is they keep the crap out.  I've gone diving in some
pretty silty/sandy/crappy water and never had any grief.

Also, I've been a bit of a bad boy and haven't gotten them serviced
annually like I'm allegedly supposed to, so I still have the good old
parts.  

> ... They changed tehe regs twice after
> that and made them worse and worse. When they put the HP port out the
> side, I knew what we were dealing with.

The old hose arrangement, which I have, with the five ports coming out
radially, was a bit of a pain back in my single tank and drysuit days,
because at least one hose had to come almost straight up behind your
head, but with only two or three hoses out of each first it makes a nice
neat Hogarthian setup.

They were certainly the reg to have, back in the good old days, but as
you say, the past number of years have been worrisome.

-- 
Anthony DeBoer <adb@on*.ca*>
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