My diagnosis is you are "slap happy".... heheheh

   Jim

Sender: Sean Cary  Date: 3/12/99 12:26 PM

>Wait, wait....ok. I read it again...Asbestos and Coke alert!  This has GOT
>to be a troll??
>
>Cobber...this is a Free Fire Zone...I repeat Free Fire Zone.
>
>The only bummer is that I think some of the more eloqent flamers are in
>Mexico right now!
>
>Sean
>
>This should go on for DAYS.  I think I am having Residual Surface Induced
>Narcosis...I dove last weekend and that fuzzy, kinda silly feeling is still
>here...or that might be that I'm just bored as hell?
>
>
>-----Original Message-----
>From: Craig Waldman <craig.waldman@er*.co*>
>To: techdiver@aquanaut.com <techdiver@aquanaut.com>
>Date: Friday, March 12, 1999 12:05 PM
>Subject: Upside down tank mounting - What's your opinion.
>
>
>>Hello Everyone,
>>
>>I have been reading this list for a few months now.  This is my first
>>posting to this list. (please be gentle)
>>
>>First a little about myself,  I still consider my self a baby diver. I have
>>been diving for 11 years.  My most recent certification is as a Commercial
>>HSE Surface Supplied (Top Up) diver (Part 1 equivalent)  I got back from
>Ft.
>>Bovisand, Plymouth England only four months ago.  I do not consider myself
>a
>>Tech Diver yet, but I am learning. My personal focus is on wreck diving and
>>not cave diving.
>>
>>I have been very interested in the DIR methodology.  Its practitioners seem
>>devoted, if not fanatical, about safety, and the furtherance of diving
>>technique.
>>
>>With that said, I would like to open for discussion a possible alteration
>to
>>the standard DIR method.  I DO NOT currently dive with this rigging method,
>>but am considering it. I would like your input and suggestions.
>>
>>
>>
>>While in England I was introduced to the idea of mounting your tanks so
>that
>>the valves were mounted on the bottom. (near your butt).  At first I
>>dismissed this as being silly.  But after a proper introduction to the
>>reasoning behind it, I think it has some possible advantages.
>>
>>One of my own concerns with this arrangement is that with the tanks being
>>upside down, any particulate matter in the tanks would head straight for
>the
>>valves.  (this shouldn't be a problem with properly inspected, and
>>maintained tanks, but still...)
>>
>>The first possible advantage is that the valves are much easier to reach.
>>If you can scratch your butt you can turn a valve.  This comes in
>especially
>>handy for doubles with an isolation manifold.
>>
>>A second possible advantage.  When using round bottom (now top) tanks, you
>>are even more streamlined, and have greater clearance around your head.
>>It's easier to look up or forward with NO obstructions behind your head.
>>
>>A third possible advantage. Your manifold is less likely to get banged
>>during a "Push" though an overhead environment.
>>
>>
>>And here is a big one for the Remove all excess potential failure points
>>fans:
>>
>>The Royal navy divers do not use a pressure gauge. That's one less hose.
>>They employ an interesting method of gas management.
>>
>>1- They start with two full tanks Isolated.
>>One on, one off
>>
>>2- They breath the first tank to empty,
>>then open the second tank
>>The tanks then equalize so each tank is now at %50 capacity.
>>They then shut off the second tank, isolating it.
>>
>>3- They breath the first tank to empty again,
>>They then open the second tank
>>The tanks then equalize so each tank is now at %25 capacity.
>>This is the reserve point, so begin ascent procedures.
>>
>>I'm not sure I would want to dive without an SPG, but in this configuration
>>the hose length could at least be dramatically reduced.
>>
>>
>>
>>-- Finally my questions.
>>
>>First, what is your opinion on this upside down idea?
>>
>>Second, how do you see this would effect the long hose, and other hose
>>routings?
>>
>>- Craig Waldman
>>    New Jersey
>>--
>>Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
>>Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
>
>--
>Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
>Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
>


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