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Bob: 

I just assumed that anyone taking the time to drain the and pull 
the valve to check for moisture would naturaly take an extra few
minutes to clean anddry the tank before putting it back together.
Sorry, guess I was wrong.

Ian

>On Wed, 20 Mar 1996, Barb Marshall Services wrote:
>
> A simple test for high > dew point > is to do a very quick drain of your
>bottle an then pull the valve. The cooling > by the rapid presssure drop
>will cause condensation and moisture droplets on > the inside of your tank
>but any puddling or valve freezing is a definite > sign of too > much
>moisture in the air. 
>
>This isn't the brightest idea unless you make sure to dry your cylinder 
>well after you condense air on the inside.  Rust will eventually cause it 
>to be condemned.
>
>                         Bob Favorite RVT          
>UC Davis VMTH              UC Davis SCUBA          The Octopus' Garden
>VMD 490 Instructor          safety diver               safety diver
>
>
>

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