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David, I think your experiment did prove something. 1) I think the rate at which you loose gas out of the HP port is going to be pretty much constant, no matter what depth you are at, because the size of orifice is the limiting factor and the rest has only a marginal effect. So that's a rate of about 400 psi per minute. Good to know. 2) The rate at which you loose gas out of a LP port increases with depth, because the rate at which you loose gas is regulated by the 1st stage which is balanced to the surrounding pressure. Since this rate changes with depth, it's the dangerous one, the deeper you are, the more you loose. A friend of mine had a hose blow in a cave (LP). I don't know how deep he was, but he said it took him 6 seconds to close his valve, and he lost 500 psi out of his doubles. (I don't know if the 6 seconds is accurate). The rest of the high falutin' physics isn't going to make much of a difference, although it may be interesting in an academic sort of way. Cheers. David Pearson wrote: >So my experiment did not >prove anything valid for diving. -- Paul B. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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