"James M. Knox" writes:

Ignoring the issue that your
temporary extension hose is now *permanently* attached G...

Oh, yeah...

Rather than
a one-way valve, why not just a simple in-line valve?

I was thinking that the valve should be located close to the tank (so
that the hose isn't constantly "hot"), but I don't want to have to
reach in there when I charge it.

--kyler