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To: Multiple recipients of list wreckdiver <wreckdiver@wreckdiver.com>
From: <Divesafety@ao*.co*>
Date: Fri, 3 Jul 1998 21:12:07 EDT
Subject: Re: Industrial helium

I have heard of folks using industrial grade he. However remember the atmos
your working with here. at 300 ft; almost 10 ata. I'm not gong to do the math
here but take a small amt of co (or any other impurity for that matter ) and
multiply x 10........ then remember all the gas switches (time of deco) and no
thanks not for me. My understanding is however that it is the same deal as O2;
simply pumped on top. So if you used your own bottles everytime.....hmmmmmm. I
typicly get company owned bottles and transfill to my own storage first, then
begin filling my doubles off the  remainder in their bottles so again no
thanks for me. 'also apparently only saving  about 15.00 per bottle. I think I
get 2 1/2 fills per bottle if I get them all the way to EMPTY.

Jeff Johnson

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