Mailing List Archive

Mailing List: techdiver

Message Display

Andy, thanks. You run with stages on the left side, but can "ferry"
bottles any number of ways. JJ and I had 9 each on us once. What JJ
meant by "put the highest oxygen content on the top or left for cave
diving" is that this will be the first bottle you drop going in. It
would be in your hand except for the problem of trying to clear your
ears with a bottle in your hand. Always organize your stuff and clip off
anything not in immediate use, or it ends up in a charlie foxtrot. Take
your time and do it methodicly. For wreck, you sould put the highest one
on first and the lowest on last so that you could go through them in
easier order on the way up, but you would NEVER rely on this for
identification. This would be like betting your life which shoe you put
on first this morning. - G


Andy W. Barclay wrote:
> 
> Hi George;
> 
> Excellent Post! Concise and clear.
> 
> I just have one small addendum.
> 
> In a previous message, gmirvine@sa*.ne* wrote:
> > The flawed concept? Wait a minute for that. The three bad
> > instructional practices:
> >
> >       1) Deep Air
> >
> >       2) Putting bottles with different mixes on different sides as
> >          as aid to identification, instead of marking the
> >          bottles correctly in the first place and doing it right.
> >          This is
> >          in the same category with putting different colored regs on
> >          to identify gases, or any other convoluted scheme.
> >
> >          The correct way? Mark the operating depth on the bottle
> >          the way WKPP does and leave it turned off with the reg
> >          parked on the bottle until ready to use. Unpark the reg,
> >          from the marked bottle you want, put it in your mouth
> >          turn that bottle on. IF YOU CAN BREATH, YOU ARE BREATHING
> >          THE RIGHT GAS.
> 
> When I took my Trimix course with JJ, he mentioned that it was
> WKPP practise to put all stages on the left side as you suggest. He
> also mentioned that you turn on the tank only when you are about
> to breath from it as you suggest. I follow both of these practices
> religously. (JJ caught me several times during the course, dropping a
> stage, but forgetting to turn it off)
> 
> He also mentioned that the mix with the highest O2 content
> should go highest on the left side, and I presume that this would allow
> bottle selection without having to distinguish by sight, which bottle
> contained which gas. I suppose this would allow the diver to continue
> watching where he/she was going while scootering.
> 
> Am I correct in this assumption? or is there another motivation for this?
> 
> >          Any other scheme is dangerously flawed, and I invite anyone
> >          to argue this with me.
> .....some stuff deleted.....
> 
> --
> Regards,
> Andy W. Barclay.        abarclay@ka*.or*
> Always a UNIX Evangelist (and sometimes a system and network architect)
> 
> The job cannot be done right unless the necessary tools
> are available.
>    --Proceedings of the IEEE, 2/78, p.174
--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send list subscription requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]