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Date: Tue, 20 Jun 1995 01:00:58 -0400 (EDT)
From: "Paul W. Smith" <afn20573@fr*.uf*.ed*>
cc: Sam032093@ao*.co*, techdiver@terra.net
Subject: diff. helium loss

The Wakulla Project book had an example of differential He loss, if memory
serves. It seems that someone had a slight manifold leak which allowed He
but not the other gases to leak out. This produced a tri-mix which was lower
in He and proportionally higher in O2 and N2. Very bad news when diving 
to 250+ ft for extended periods. Close call.
Double check those mixes like the man says...  Paul

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