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> 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.
> 

The tank has been filled a couple of times since the ice dive. But
it has been from the same place. I don't know when their last
filter change was before my present fills (they changed filters
last week). 

Spring VIPs are comming (I like to do my steel tanks at least twice
a year) so I'll do a fast bleed down then, and see what happens.

Stephen Galperin

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