troubledwaters wrote:
Take it to one of those Propane tank exchange places.
I recently took a tank that I had obtained by an exchange to be refilled. The dealer told me that the tank needed to be recertified. I asked him to show me the date. He did and the tank had expired ten years ago! The tank looked to be in good condition so the dealer said "I'll refill it just this one time for you."
Another thing about exchanges: they may be very convenient, but they are more expensive because the refilled tanks are not filled to their rated capacity. It's generally better to refill tanks at a dealer that meters the propane. That way you only pay for the propane actually put into your tank.