On Jul 13, 12:45*pm, jcarlyle wrote:
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

Word of mouth from local folks, other pilots, scuba divers etc. Talk
to them (if they have time). Ask them what they do in an inspection.
Ask them about common problems or worse case things they find. How
clean/modern is their shop? Etc. usual stuff.

Also important is care in checking on service bulletins on your
cylinder. If they are not paying attention to this go elsewhere. You
can describe your cylinder and manufacturing numbers and ask them what
needs to be done. If they don't go and look up the manufacturer
website (or know by daily experience) go elsewhere. Like with aircraft
AD, SB and TNs you should be looking this up yourself and know before
taking the cylinder in.


Darryl