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I'd be concerned about them using something hard like sand or diamond grit.

If they use something soft like bicarbonate of soda or walnut shell, it
shouldn't be an issue, although I'd still want a hydro before I returned the
tank to service.

Don


From: <sumpcaver@at*.ne*>
> It seems that there is a shop in my area that likes to
> sand blast the interior of steel SCUBA cylinders, even
> if there is slight surface rust.  Any idea how the tank
> manufacturers feel on this?  What about the issues of
> work hardening??
>
> I have sandblasted many different objects with diffent
> media in the past, although one thing I have noticed is
> that blasted objects seemingly look clean and new while
> hiding more oxidation under the surface.
>
> I will not even get into their policy regarding O2
> cleaning.


Shop online without a credit card
http://www.rocketcash.com
RocketCash, a NetZero subsidiary
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