Thanks for all the helpful tips (except the balloon one lol!)
I'll have to call and see if they will credit me for use on refills on my 20 pounder.
Just had the new natural gas tankless water heater installed today and I'm down to 25% left in the propane tank.
I'm switching over to natural gas but my 100 gallon propane tank is still 30% full. Is there any way I can somehow transfer what is left to 20 lb or 100 lb tanks without blowing myself up lol? Currently I use the 20lb tank to transfer to the small green ones but I'm guessing the 100 gallon...