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post #13 of Old 07-18-2013
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Re: Need answer to something I've always Wondered About

Originally Posted by KIVALO View Post
Anyone ever tried adding a one way valve to make a "regulator" of sorts? Utilize two tubes, one a supply and one an exhaust?
I seem to recall seeing something like that once. But it doesn't get around the pressure problem. As Fst said, 3ft (1m) is probably the realistic max. Even then, middle-aged/older folks, with less elastic connective tissues, might find lung collapse a real risk.

Never forget them. Do something to prevent it from happening again.
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