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Date: Wed, 15 Mar 2000 06:04:59 -0500
From: trey@ne*.co* (Trey)
To: Simon Murray <simonm@ho*.co*.za*>
CC: Tech Diver <techdiver@aquanaut.com>, Lovan <LovanC@Tr*.co*.za*>
Subject: Re: Helium penetrates neoprene ???
Simon, could you get this stroke to subscribe to techdiver - we have not
had anyone to fry in weeks.

The best chance for neopreme to hold to any degree at all is the
commercial grade G231 stuff that has nitrogen bubbles in it
intentionally  in the manufacturing process. This mateial will compress
less than non-bubbled neompreme, and will rebound exceptionally well,
but still has a massive buoyancy swing. Only somebody who does not know
any better dives a neopreme dryuit of any kind.

We use the G231 nmaterial for our hoods so that they do not stay crushed
and rebound at deco to keep us warm.

The problem is diving is that you have an expensive , upscale sprot that
is taught by roofers and insects who are dumber than mushrooms and can't
get anything right. I saw an explanation of oxtox on the GUE list that
some guy got from one of the other agencies ( he threw it out for our
amusement) that was cause for Baker Acting whomever told it to him. What
amazes me is that the smart people believe the cockroaches and then go
so far as to repeat the slathering moronity that is taught to them by
the dive industry savants.

This is yet one more example. What you ar "missing" , Simon, is just how
freaking stupid the dive "educators" really are. Good thing we have
these lists, or we'd all be Tai Chi breathing and taking deep air
classes in bondage wings , steel tanks with wetsuits, hemlets, square
lights, skin diving fins, neopreme drysuits, fucked up manifolds, tec
bs's, slobwinders, impropperly marked bottles, stroke gear configs,
stuffed hoses, Poseiden second stages, high speeed inflators, 1/2 inch
port regs, etc, etc. 

Simon Murray wrote:
> 
> I had a conversation with a long term hardened stroke over the weekend
> and he told me that his non-crushed neoprene dry suit does not change
> its buoyancy characteristics as he goes deeper because the helium that
> he uses to inflate it penetrates the neoprene and stops it from
> crushing.
> 
> Sounds like one of the best stroke stories I have ever heard, or am I
> completely missing something ?
> 
> Regards,
> 
> Simon Murray


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