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Date: Mon, 22 Sep 1997 13:46:07 -0400
From: Bill Mee <wwm@sa*.ne*>
To: lavalle7@gt*.ne*
CC: techdiver@aquanaut.com, cavers@ge*.co*
Subject: Re: In Defense Of EANx 80 For Deco
Frank,

Did you read the Baker's dozen reasons?  This lists touches on more than
enough reasons to not use EANX80 routinely.  The real issue is not about
scraping a few minutes off of your deco time either, it's about deriving
the intended benfit that the deco is supposed to provide in the first
place.

Frank, it would be very appropriate to the discussion to provide the
list with some discriptions of the dives you are doing and the deco
profiles rather than simply generalize.  For instance I know from past
NACD journals that you were involved in ocean "blue" (more accurately
black) hole exploration.  Discussion of these dives would be a good
start.

Regards,

Bill Mee




Frank Lavallee wrote:
> 
> I use EANx 80 for deco instead of 100% O2 for 2 reasons:
> 
> The total CNS% for a long/deep dive can easily reach or exceed 100%.  By
> using EANx 80 instead of 100% O2 for deco, the total CNS% will drop
> dramatically, and at the same time, it will add only a few additional
> minutes to your overall deco time in most cases.
> 
> It is much easier to get a full fill to 3000 p.s.i. for your deco bottle
> from O2 banks(unless of course you have a booster pump, which most of us
> don't).
> 
> Frank Lavallee,
> Plant City, Florida
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