>>>> David, I think your experiment did prove something.<<<<

....All of which goes back to the original premise - ANY leak at 300 ft. is
not to be taken lightly.
BTW, I agree, all the physics was interesting.

Joe

----- Original Message -----
From: Paul Braunbehrens <Bakalite@ba*.co*>
To: David Pearson <djpearson@sy*.ca*>; Rodriguez <mikey@ma*.co*>
Cc: <techdiver@aquanaut.com>
Sent: Sunday, June 24, 2001 4:49 AM
Subject: RE: Blown Hose


> 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.
> --
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