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Date: Sat, 25 Nov 1995 07:56:36 -0500 (EST)
From: Ken Sallot <afn35346@af*.or*>
To: Jason Rogers <gasdive@sy*.DI*.oz*.au*>
Cc: techdiver@terra.net
Subject: Re: Spare Air/Pony (was manifolds & inde, was trimix bailout)
On Sat, 25 Nov 1995, Jason Rogers wrote:

> Hi,
> 
> Has anyone else noticed that the manifold/indep debate is exactly the
> same as the Spare Air/pony debate?

No it isn't. Because I said so.

With independants you can't get all your air at all times. Yes, if
you have a free flowing poseidon you'll could conceivably stain your
dry suit. However, remember, with manifolds your buddy is your backup
air.

One thing you mentioned in a previous post was about your regulator
failure. You said, "if I lost 90 cu ft. of air I would really be upset"
(or something to that effect).

Excuse me, when your regulator went kaput and you couldn't get to any of
the air that was in that tank, how much air did you lose? If you were
before thirds and using 95 cu ft. tanks I'd have to guess at least 60
cu ft. of air were lost. "But the tank still has the air", but if you can't
get to it, then it's worthless.

Manifolds are NOT an ideal situation if you are solo diving. Under those
circuimstances you should have some alternative backup gas supply. However,
even something like blowing a burst disk will not vent all of your gas 
instantaneously. 

If you dive solo, independants work quite well for that configuration. 
However, if you are diving independants within a buddy team then either 
everyone in the team should dive independant, there be at least two 
manifold divers, or the manifold diver should prepare as if diving solo 
and bring the appropriate bail out gas.

When diving in a team, manifolds make good sense. You have access to all 
of your gas at all times, and the simplicity of use.

Let me ask you this. How many people have died from a manifold failure? 
Now how many people have died because of complications (human error) with 
independants?

Ken "I'm tired, grumpy but have tickets to the big game today".

--
==================================================================
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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