JY, I just mean we don't allow beginning a dive with two deco tanks and
one reg - that is what I meant by switching regs.

Also, at the depths we dive , and given that we are in cave and have to
keep moving, the gas everyone loses sitting still while one guy switches
a reg puts the whole team at jeapardy, so what we do instead is have
that guy pick up a safety bottle at the next depot instead of swtiching.
With rebreather, you have time to switch.


Capt JT wrote:
> 
>   Trey wrote:
> We no longer encourage
> >underwater reg switching even on deco gas an intentional plan for the
> >last several years.
> 
> Does this mean even in a reg failure or blown hose?
> 
> >The funny thing about yoke is that it is easy to change underwater - but
> >then you get a lot of chances to do so.
> 
> I use yoke on my stages and they are easy to change underwater, had an
> o-ring on the hose at the second stage blow last year at 70 ft after a
> 400ft dive. It was easy to change underwater with the help of my buddy and
> support diver.
> Another diver blow his o-ring on the din reg after another 400ft dive and
> had a hard time changing it, but he was also a CF of gear and I was not
> given all the details cause they get tired of me rubbing it in their nose.
> 
> >  DIN does not provide that
> >entertainment.
> >
> >However, the fact is that theoreticly , they should both be the same vis
> >a vis the o-ring. On the fragility issue, it is the knob that is your
> >risk, not the DIN. Break the knob and you can't turn it on. If you are
> >using a reg that has a thin DIN tube, and you were to hit it hard enough
> >against something, it would indeed break, but that is more likely to
> >occur on land than in the water.
> >
> >In real life, the rocking of the yoke reg under pressure againt the
> >non-captured o-ring is what shaves the ring and breaks it, and the thing
> >that wears the ring out so fast is that the reg constantly twists
> >against it under pressure, whereas the DIN ring does not get that kind
> >of play due to the nature of DIN. The "capturing" of the o-ring is
> >insignificant otherwise.
> >
> >If I were buying , I would buy DIN.
> >
> >Fabricio Rosas Tariki wrote:
> > >
> > > List, regarding to DIN or yoke connections on stage bottles, which one is
> > > DIR? I've heard from a GUE instructor that DIN fittings are a no-no for
> > > stages, due to it's fragility to impact. Something that a shock would
> > render
> > > the stage reg useless. Is there any truth in it? If affirmative, when
> > diving
> > > with one stage only, should I go for yoke or stick to DIN (as my back gas
> > > regs are all DIN)?
> > >
> > > Regards
> > > Fabricio
> > >
> > > -----Mensagem original-----
> > > De: Andreas Nowotny <nowo11@gm*.ne*>
> > > Para: techdiver@aquanaut.com <techdiver@aquanaut.com>
> > > Data: Quarta-feira, 29 de Março de 2000 05:29
> > > Assunto: Re: DIN Fitting/A Clamp
> > >
> > >  At 01:00 26.03.00 -0000, Paul Wright wrote:
> > > >With the current UK/USA/Europe slight antagonism taking place it would
> > > >be interesting to hear the views of the list members on the merits of DIN
> > > >against A Clamp (US Fitting for pillar valve/regulator attachment.
> > >
> > > One of the most important advantages of the DIN fitting is that the o-ring
> > > is on the first stage, not the bottle. Blown o-rings should really not
> > > happen this way.
> > > All in all, the DIN way seems to me more secure. The A-clamp is probably
> > > good enough for rec-diving, but I generally prefer the (subjective)
feeling
> > > of that little extra security the DIN connections provide.
> > >
> > > Then again, I'm German and thus just used to it. Did use A-clamps on
> > > holiday though and had no problems either.
> > >
> > > Andy
> > >
> > > --
> > > 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'.
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> 
> Your Guide to Great Wreck Diving along the East Coast & more
>   Web Site  http://www.capt-jt.com/
> Email     captjt@mi*.co*


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