On Thu, 05 Apr 2007 22:41:28 -0500, wrote:

I have a 500 gal. propane tank in my yard for heating. I am changing
suppliers so the old company is going to come and get their rental
tank.

Steve B said what I would say.

Also, I have a vague feeling they buy back what you haven't used, but
if so, I still don't know the details. Look at your contract.