" I have 4 empty propane grill tanks that are the old style that cannot be filled anymore. yard wants a big hole cut in the side of them. Way too much work for way too little money! "
I was helping a friend out at his shop a couple of winters ago and the guy in the shop behind us collected them , always had over 50 + .
We use to empty them out with our 115,000 BTU portable heater LOL .
When empty , he took the valve off , flushed with water , then placed it in a " Old " Reciprocating Hack Saw and let it run , only way the local yard's would take them .
Bandit