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Rick Fincher' wrote:
> (snip)
> 
> As far as sucking down twin manifolded 120's in a minute:
> 
> First off, you can't open the valve on a single 120 and empty it that fast,
much
> less twins, unless they are near empty already.
 
I tend to agree with you, Rick. I'm just relating
what I was told. I would think you _could_ drain
them quicker at that depth (140) because of
compression and all but I don't do flow dynamics.
Even so, I think it would take a bit longer than 
a minute.

> Second, why didn't he use the isolator valve and limit his gas loss to one
tank?
> When that tank ran out he could have switched to the other reg. That's what
the
> isolation valve is for isn't it?
 
Why didn't he shut down his manifold? If I could
answer that then I might have to start answering
for all the stupid shit I see going on. I could
put forward that if he had independants . . .
ah, but I won't go there - today!

Safe diving,
Mark
--->>


> Rick

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