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At 12:18 AM 6/22/2001 -0400, David Pearson wrote:

Hello David,

>day and turned on the tank to see what would happen.  At a starting pressure
>of 3000PSI on an AL63 I left the valve full open for 1 minute.  When I
>checked the pressure after, it had only dropped 400PSI.

At 330 feet (10 AtA more than at the surface), that same test would
drain ~4000 PSI in one minute.  The small fixed orifice of the high
pressure port helps mitigate the severity of the problem, but at
300+ feet, any blown hose is a *very* big deal.

-Mike Rodriguez
<mikey@mi*.ne*>
http://www.mikey.net/scuba
Pn(x) = (1/(2^n)n!)[d/dx]^n(x^2 - 1)^n

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