> You may want to look in to installing an "extend a stay" fitting into your
propane
> line which will allow you to do exactly what you're proposing. This device
actually
> works in two ways. You can run an external stove, hot water device,
whatever your
> hearts desire from the westy tank. Alternatively, if your onboard tank
runs dry, you
> can hook up a portable tank to the fitting and work in in reverse, thus
"extending"
> your stay. This is the way the device was designed and intended.  I tend
to keep
> my Westy tank for a reserve, and use a small 5 pound or so bottles, which
is easy
> to transport.

Here you go:

http://www.busdepot.com/53700

- Ron Salmon
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