Thats why you either:
1. Buy your own propane tank
-or-
2. Take the label off the Blue Rhino and claim it as your own
-then-
Go to Tractor Supply, where they actually charge you by the gallon. You actually get what you pay for. I go there for my tanks. I have two 30 pound tanks. They are an unusual tank, but happily fill them up. Without issue. And I pay for how many gallons they actually put in there.
On deposits, I am old enough too remember going with my momma to turn in empty Coke/Pepsi bottles.
Off-topic? Hell, thats what sometimes turns the boring conversation into something fun. 
I think you misunderstand what I'm saying.
First of all, I never intended to "buy" a tank. I intended to put a "deposit" on a tank, fully expecting to get that deposit back when/if I no longer need the tank. And when I converted my grill from propane to NG, I arrived at that point.
Nope. The merchants - regardless who they are - don't look at it that way. In their minds, if you put a "deposit" on a tank, you just bought it. They will NOT take it back, unless you agree to buy a filled tank. And that's not what I want. I want to get rid of the empty tank.
This is not the first time I attempted to "turn in" a tank and get a deposit back. Did so successfully in Missouri, as I recall. Not any more, apparently.
So now I've got this propane tank that I have zero interest in sitting in my garage. It could be worse, I suppose. The damn thing could've blown up last night, creating another catastrophe that I don't need. But that hasn't happened.
But never one to tempt fate, I put the tank in my shed. If it blows up out there, the only thing it'll destroy is my $6,000 zero turn and various other Stihl lawn equipment that's also expensive.
Sigh.
