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Date: Sat, 28 Oct 1995 11:48:16 -0600
To: techdiver@terra.net
From: chris@ab*.co* (Christopher M. Parrett)
Subject: Re: Gas Blending
>Chris P.,
>     I believe that a program that will tell me things like what if I
>put air to 3600 on top of a 14/45 mix at 2000, what would I have now.
>I understand people like to get real teckie with math and want to be
>as close as possible, but I feel that you can spend a lot of time
>trying to reach a goal with the cheapest gauge they could find is
>futile. They could even over-shoot their O2% and dive with it anyway,
>and may tox out just because they wanted to get close.
>    Sorry, but I just don't have time o write #'s down when I'm
>filling. Last night I was trying to fill 2 sets doubles with mix, 2
>80's with mix, 2 80's with 50/50, 2 80's with 34/66, O2 bottles, air
>bottles, make sure all gear is working, trying to get 3 scooters
>ready, and the list goes on and on. What I would not like to see in
>any mix program is the damn thing asking me how much nitrogen, what a
>stupid question, I would have to do math. I HATE TO DO MATH, that's
>what I bought the program for.
>   I'm not flaming you or anything, I just see so many people making a
>big deal out of something that needs to be kept simple. Anyway, I
>think i hear George pulling up now,and I would not want him to see me
>talking to you.(ha ha)
>                                              Barry
>-- 
>
>

Fair enough.

If the occasion presents itself, and you do find the time to record one
nights worth of filling, that information would be welcomed with open arms.

As for the Nitrogen..
The Abyss V1.40 Gas Mixing screens have been updated to remove N2 as a
mixable constituent. All N2 now must come from AIR.

As for tank topping, that is VERY much part of this new equation.



Christopher M. Parrett, President, Abysmal Diving Inc.
Makers of ABYSS, Advanced Dive Planning Software.
6595 Odell Place, Suite G. Boulder CO, 80301
Ph, 303-530-7248, Fx, 303-530-2808
ftp://abysmal.com/users/abysmal http://www.emi.net/gulfstream/abyss/abyss.html

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