On Jul 13, 2:51 pm, Darryl Ramm wrote:
The cylinders are typically dried by blowing air or heated air in
them. Larger shops will have drying stations with a rows of hoses and/
or tubes that go down into the cylinders and dry them.

[ snip ]

You cannot be assured of anything in life. Like packing a parachute,
find somebody you really trust to inspect your cylinders.

Darryl

Thanks, Bill and Darryl. Heating would do the trick, given enough
time.

I ran across the following site: http://www.westernsalesandtesting.com/services.htm
where they talk about cleaning the interior of the cylinder. Is
cleaning done normally on aviation oxygen tanks? The chemical cleaning
sounds thorough!

Darryl, how would you recommend going about evaluating a cylinder
inspection company before deciding to use them?

-John