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OK.....   Doesen't air have a tendancy to rise while in water???  I thought
so..  Hence to empty a bladder doesen't the deflator need to be the highest
point of that system??  I thought so...

Try this next time you go diving...  Take a bladder under water.   (make sure
it isn't the one attached to you)  Fill it fully with air.  Now press the
deflate button..  it deflates to a certian degree right?  now move the baldder
around to where the inflator/deflator is at the highest point and prtess the
deflate button again... WOW more air comes out!!!

Yes, the outside pressure of the water does deflate the bag...  If the ambient
pressure of the bladder and the water were the same, the bag would not
deflate.  Thus water pressure is greater than air pressure


Andy Schmidt wrote:

> Dear Jammer Six [mailto:jammer@oz*.ne*]
>
> >> Isn't the water pressure then greater than the air pressure inside the
> wing? Doesn't that force the air out? <<
>
> Nope, the wing is a flexible container and the air inside the bladder is
> compressed (reduced in volume) relative to the current depth - until the
> pressure inside the bladder is equal to ambient pressure.
>
> (Let's forget all this "advanced" "technical" stuff and just concentrate on
> Boyle's Law from your basic scuba class.)
>
> Best Regards
> Andy
>
> EMail:  Andy@Sc*.AS*
>





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