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Jammer I am thinking in terms of deco diving. IMHO a H or Y valve does not turn a single into a true redundant system suitable for decompression diving. The problem is that you have 2 knobs but they are still feeding into essentially one valve. If you have a problem with a valve, busting a knob off for example, you cannot isolate your gas. With doubles you close the iso valve and you still have enough gas if you are doing thirds. With an H valve you are shit out of luck. So, don't do deco with a single, if you do you are fooling yourself. Jim On 7/24/98 8:50 PM Jammer Six wrote: >On 7/24/98 15:31, Jim Cobb, cobber@ci*.co* posted: > >>I dove an H-valve setup exactly twice before I realized that it was a >>bogus rig. Now I carry a small stage with me if I need a backup with a >>single tank. I don't do deco with a single tank. > >What do you think is wrong with it, Jim? > >There's several points I like about it over a 30 ft. pony, but it has a >couple weak points, too. > >What are the weak points you see? > >"C'mon, you sons of bitches, you want to live forever?" > -First Sergeant Dan Daley >"Who wants to live forever?" > -Freddie Mercury >"I swear, I'm going to live forever" > -Jon Bon Jovi > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > ------------------------------------------------------------------- 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'.
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