Dave,

The fill valve is a oneway, spring loaded, double seal assembly. Normally, only flows
inward into the tank when filling. Has nothing to do with an over pressure condition.
Over pressure is managed via the main shutoff valve and its built-in over overpressure
valve. Notice above, I wrote 'Normally flows'.. They do, occasionally leak outwardly.

Tapping a leaking fill valve may re-seat the seals and stop a leak. Dirt or the freezing
that occurs when filling can temporarily cause a leak, once the filling is completed. The
tapping seems to work as a cure sometimes. Sometimes not! BTDT

I'd take your tank's leak as a symptom. May not happen again but...
I would not park the Van in a closed garage or parking area just to be safe.
As the Gas Fitter advised... if it leaks again. Best to replace the Valve.
Gads... that valve has served you well for 23 years... Like our Vans it is getting old!

regards

Phil Z.

On Sat, 15 Mar 2014 10:46:32 -0500, Dave Mcneely <mcneely4@COX.NET> wrote:

>Thanks Stuart, and all others who responded.  I think I'm good to go, and I won't need
a refill on this trip.  Next refill will be from the people who helped me by inspecting it
and reassuring me of its integrity.  I tried to pay, and they wouldn't take any money,
though they spent nearly an hour by the time we talked it over for a bit.  The kind of
place you don't find much any more.  mcneely