I've long puzzled about a way to temporarily connect a portable tank to the
fill valve as a way to get me by when the tank goes empty on a trip.  I
purchased a fitting to go on the fill valve and was going to rig up
something just like this and test it out next time my tank goes empty.
There was some question about if the pressure in the dispo tank would be
enough to push open the fill valve.
2 burning questions I have:

1.)  When a propane station connects to the tank, does the nozzle
physically push the fill valve open or is it the pressure of pumping liquid
propane that opens it?

2.)  Then basically the same question about this gadget.  if this thing
physically opens the valve, that's fine when your tank is empty and you are
hooking it up, but once some liquid propane has gone from dispo tank to
westy tank... how do you disconnect it?  You'd have to disconnect both
tanks simultaneously and still would get quite a bit of gas release.

Edward

On Tue, Oct 20, 2015 at 4:00 PM, Dennis Jowell <dennisjowell@gmail.com>
wrote:

> I always have 2-1 lb canisters onboard our Westy for our small propane
> grille we use outside the camper. I could use any residue left in the 1 lb
> for our grille. So the consensus from our list members is that it would
> work? I thought about the extend -a-stay  but was concerned about adding
> more plumbing to the existing tank.
>
> Dennis Jowell
> Scotch Hollow Farm
> Newbury, Vermont
>
>