Just in time for grilling season, both of my propane tanks are empty...

…and they’re both more than twelve years past their manufacturing date.

They each bear a label indicating that they need to be recertified if more than twelve years have passed since the date of manufacture. What’s involved in that? Is it cheaper to just go out and buy a new tank?

Thanks in advance for knowledgeable responses.

Duplicate thread.

The other one is here:

Reported.