On Sun, 24 Feb 2008 17:00:40 -0500, Jeff Wisnia
wrote:


Actually I saw a device somewhere, a hose with connectors at the ends,
that enables one to re"fill" it from the 20 pound tank. I don't know
if this is UL or otherwise approved, and I can't get my head around
whether it would have as much propane inside as a new can would, or
how much less.

Harbor Freight sells 'em. I've had one for years and refill my
Bernz-O-Matic style propane torch bottles from a grille tank using it.

IIRC there was some note that came with it saying something about not
taking refilled bottles across state lines.

I'm careful not to "overfill" those bottles I weighed a "full" newly
purchased one abd don't refill to any more weight than that.

A) Could it fill more than that? If the pressure when new in the small
tank is as much as the pressure in the large on when new (is it?), how
could you fill the small one to any higher pressure (and weight)?

B) Do you have that kind of control? Obviously you think you do, but
I'm surprised unless it fills slowly. I thought there would be no
orifices in the hose, just a full size opening.

Jeff