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Why are you diving yoke instead of Din? Wouldn't that eliminate the tank-o-ring as a failure point????? On 26 Jan 98 at 20:45, Nanci LeVake wrote: > Date: Mon, 26 Jan 1998 20:45:58 -0600 > To: Jim Cobb <cobber@ci*.co*>, > "Ben Greenhouse" <b.greenhouse@ut*.ca*> > From: Nanci LeVake <nlevake@pi*.co*> > Subject: Re: Fw: Pony Bottles > Cc: "Tech Diver" <techdiver@aquanaut.com> > > >Any of the above fails you shut of valve of offending reg. You still have > >access to all your air in both tanks. Independent doubles? Pony and in > >deco? you are screwed. > > Independent doubles??????? > > You have two choices, manifolded doubles with or without an isolator. > The isolator only solves one problem, but it's a big one. Total loss of > your gas supply caused by a tank O-ring failure. _If_ you're never > going to dive solo, or get separated from your buddy, you theoretically > don't need the isolator. > > Nanci > > > >Problem with valve? Shut off isolator. If you are following rule of > >thirds you will survive. No isolator on your manifold? you are screwed. > > > >A proper manifold made with Orings is probably the most reliable piece of > >gear you own. Extra failure point is BS. To short yourself by not getting > >an isolator would be a stroke move. > > > >A cage? Is this a troll? Ben, I don't know about you, but I don't go > >careening into walls and bulkheads, smashing my tanks into everything in > >sight. I realize that this is SOP for some divers, but, for some reason, > >those ranks seem to be thinning out. > > > > Jim > > > > > > > >On 1/26/98 2:34 PM Ben Greenhouse wrote: > > > >>Hey Folks: > >> > >> I was wondering what the current thought is on isolator valves. I > >>thought > >>that the general consensus was that they were just an extra failure point. > >> The > >>reasoning (as I remember it) was that the only time you would need an > >>isolator > >>valve is in the event of a neck o-ring failure on one of your valves. But > >>the > >>isolator valve in itself contributed more of a liability since it was more > >>likely to fail than a neck ring. Or in the event of a collision which might > >>rupture a neck ring, the isolator valve was likely to be damaged as well, > >>unless > >>you had a cage, in which case you wouldn't need the isolator anyways. So > >>what's > >>the thought now? > >> > >>Ben > > > > > > ------------------------------------------------------------------- > > Learn About Trimix At http://www.cisatlantic.com/trimix/trimix.html > > > > > >-- > >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'. > Cheers Tony -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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