Bill

The WKPP position on the 80/20 is fine but let's keep the fact correct. 
There was 100% O2 on board when Tai die. Yes there was 80/20 on board also.

Where ever you got you information is not a reliable factual source.

David

-----Original Message-----
From:	Deco [SMTP:diverse.tek@sy*.ca*]
Sent:	Wednesday, May 13, 1998 9:39 PM
To:	wwm@sa*.ne*; cavers@ca*.co*
Cc:	techdiver@aquanaut.com
Subject:	Re: Baker's Dozen Revisited

Thanks for posting this again. I seem to have misplaced my previous copy.
Could you explane the term poodle jacketed second stages. This term is not
used up here.

Thanks

Tim Ross
-----Original Message-----
From: Bill Mee <wwm@sa*.ne*>
To: cavers@ca*.co* <cavers@ca*.co*>
Cc: techdiver@aquanaut.com <techdiver@aquanaut.com>
Date: Wednesday, May 13, 1998 3:20 PM
Subject: Baker's Dozen Revisited


>Fellow Divers,
>
>Once again the subject of 80/20 rears it's ugly head. We are now told
>that the use of this peculiar gas mix is somehow or the other possibly
>an unwritten defacto IANTD teaching standard. Let me remind you that the
>WKPP does not use this gas mixture for anything and if you made the
>mistake of showing up with this stuff you would never get out of the
>parking lot.  For those who may forget the past and possibly repeat it I
>reiterate the famous "Baker's Dozen" reasons why we do not use this gas.
>
>If you think reason #12 is a joke may I point out that the dive boat
>which carried, the now late, Tai Wilkerson on his final fatal dive had
>no oxygen on board. They did however have 80/20.
>
>One of the reasons for carrying pure oxygen as a deco gas is that it
>will be immediately available in an emergency. The administration of
>pure oxygen is SOP in the aftermath of almost all forms of diving
>related accidents.  This may prove to be an issue in subsequent wrongful
>death litigation in that having "no pure oxygen" is essentially
>indefensible and could be considered negligent.
>
>Using some homebrew dive table program to justify the use of 80/20 is
>not reasonable inasmuch as the Buhlmann algorithm (upon which almost all
>of these programs are based) is a diffusion based  compartmental model
>which does take into consideration micro-physiological issues.
>
>PLEASE REREAD the Baker's  dozen and take this seriously.
>
>Regards,
>
>Bill Mee
>

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