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Date: Sun, 26 Nov 1995 07:22:31 -0500 (EST)
From: Ken Sallot <afn35346@af*.or*>
To: Jason Rogers <gasdive@sy*.DI*.oz*.au*>
Cc: Carl Heinzl <cgh@ma*.ai*.mi*.ed*>, techdiver@terra.net
Subject: Re: Spare Air/Pony (was manifolds & inde, was trimix bailout)
On Sun, 26 Nov 1995, Jason Rogers wrote:

> If an american diver is discovered dead, while solo diving, using
> a manifold, what is the cause of death?  Is it put down to solo
> diving? or is it put down to solo diving, without a backup gas
> supply?

It would go probably go down as solo diving. I suppose if he died
due to a manifold failure then it would be solo diving without a backup
gas. Remember, your buddy is your backup gas with manifolds. As I have
said before, independents work great for solo diving, they idea falls
apart in a buddy team when at least one person is diving a manifold.

> How many people have died from running out of gas????   With
> independents *this* wouldn't have happened.  Getting no gas out
> of a cylinder is a much stronger warning than a needle pointing
> at a predetermined point on a gauge.  With manifolds, you get that
> strong warning about 1 minute before you breathe water.

Quite a few people have died from running out of gas. I put to you that 
those people would have probably died as well if they were diving 
independents. Ask yourself, "What's the #1 reason people run out of gas 
on a dive?", the answer will probably be "Human error" of some sort. 
Sure, a gauge can stick, but if the diver does not realize something is 
wrong when they're at depth for a long time and the needle doesn't move 
(no offense Rich), then that falls under "Human error".

Now, we have Mr. Human error doing a cave dive on independents. He goes 
in, does his reg change on thirds like he should, but then human error 
kicks in. His needle is stuck on his second tank, and he doesn't suspect 
something is up when it's taken him a long time to hit thirds on that 
tank. Finally, with the needle reading 2200, he sucks a dry tank. Does he 
have enough air to get out alive from a cave? He used 1/3+3/3 going in. 
He has 2/3 left. Once again, human error is to blame. A little far 
fetched, yes, but the point I'm trying to make is most air failures are 
caused by human error, not mechanical failure.

Independents have no business in a buddy team, period. If the entire 
"team" is diving independents, then each individual is responsible for 
himself/herself. 

Ken
--
==================================================================
Ken Sallot        "Your trim goes to hell when you run out of air"
afn35346@af*.or*                                         - Jim Wei
http://grove.ufl.edu/~ken/

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