There should be very little evaporating liquid in the system I describe. And no "cold from evaporating liquid" either. As I wrote earlier, refrigeration guys used to tranfer refrigerants using this system, over the years. Before the massive government interference, of course.
..
Christopher A. Young
Learn more about Jesus
www.lds.org
..
..
wrote in message ...

Yes, I noticed after that you were talking about consolidating the
propane from several almost empty tanks into one.

You STILL need something other than the hoses from a barBQ. You need
hoses for high pressure gas that can also withstand the cold from
evapourating liquid - and without a pump you need a fairly healthy
temperature differential between the donor and reciever tanks.

So the "if you are going to do something stupid" part is even more
germaine to the discussion.