On Thu, 18 Dec 2003 01:32:26 -0600, Richard J Kinch
wrote:

Jack Erbes writes:

I think the bottom line on purging is to reduce the potential for
explosions.

If that's the case, then why do we use gasoline tanks full of air?
Shouldn't they be purged, too?
Gasoline tanks are vented to atmosphere when they are filled - so they
purge themselves.