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Date: Wed, 29 Nov 95 13:23:18 EST
To: techdiver@terra.net
Subject: Re: Spare Air/Pony (was manifolds & inde, was trimix bailout)
From: dkeenan@zi*.sb*.co* (Daniel Keenan)

Jason

If you are truly concerned with splitting the air up evenly, there is
an easy fix while using a manifold.  After giving your buddy the long
hose, simply reach back and turn your isolation valve off.  You and
your buddy will have equal amounts of air to try and swim to the
surface with. If this was not previously discussed your buddy may
not be very happy with your actions.  I have heard of air sharing
disagreements being settled with knives before.

Regards

Dan Keenan

************************************************************************

This sounds like very bad backup.  When you are diving with the inhuman
who doesn't breathe at all, you do realise that when he has reached
thirds, there isn't enough gas in his system to get you both back
if yours blows up?  Do you also realise that when you are diving
with the air hog, if he misses his thirds, and then has a problem,
you won't have enough gas to get you both back?  With a mani he will
breathe your system down till there isn't enough to get either of you
back.  With an inde, you can give him a reg (which is supposed to
get him back).  If he breathes that dry, well tough, he don't get
seconds!  You're going to need that to get out yourself!

(note to anyone who gets into this difficult situation.  Be DAMN
sure that you don't arrive back alone with half a cylinder still left.
Drain it before you surface!)

With an independent system (be it in cave or OW) other peoples mistakes
won't do you in.

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