Originally Posted by milesvdustin
Every single time I use the home depot one it screws up and gives me an empty tank and then a full one. If I was dishonest I could have a huge stash of empty tanks by now!
The one time I tried using that system (at Menards), it gave me an empty tank. By the time I gave up trying to get a full tank out, it had charged me for buying a new full tank ($50+ instead of the $19 exchange). Ended up going into the store to get my refund, and haven't touched the self-serve machines since.