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Hi Jeff, (Odd, I got your message twice, but with different headers) At 10:18 PM 7/20/95 EDT, Jeff Kell wrote: >At the risk of showing my ignorance here (have dealt with manifolds, but have >never seen a Y-valve), doesn't the Y-valve have TWO valves downstream from >the actual Y, rather than a single valve upstream from the Y? If the latter, >I fail to see any benefit from a Y-valve other than possible regulator freeze >in cold water; sounds more like doubling the risks of a free flow otherwise. >Doesn't the Y-valve at least have some means of shutting off one side of the >output (whether separate valves or a single isolator) ? Isn't that the >intent? Well, I've seen the same Y valve several times, and it has two O-ring outputs, each with it's own valve. So to use your terminology, it has TWO valves downstream from the actual Y. As a matter of fact, most of the time, my friend uses his Y tank with only one reg on. GAG: once, my friend brought his tank to a diveshop to fill it, and the bozo asked him if the second valve/outlet was for an "imbedded second tank". No kidding!!! Another proposed to put an extra filling hose on the other outlet "to fill it faster" (never mind that both fill hoses came from the same cascade). What I meant was that when one reg free-flows, it empties the tank which is used by the other regulator, thus jeopardizing the ENTIRE air supply. My friend (okay, he's on TECHDIVER, too: Richard Larocque) only uses his Y-valve tank on "easy" dives where he does not want to lug his pony around, so he puts his pony reg on the other outlet. ---============================================================--- Life is 80% showing up. _ _ _ _ _ _ _ _ _ _ _ _ Woody allen ** Marc Dufour - [\] ACUC 6 31874 - http://WWW.CAM.ORG/~mdufour **
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