Like I said, they always let me choose which tank I want, or at least turn down a crappy looking one.Works both ways....I've turned in some old-valve tanks for the new 80% fill ones.
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Definitely have the tanks filled versus just swapping when possible. I used to just swap them out until my local hardware store started filling them and only charging for the volume that was put in to fill it up. Even when they get low to the point where they're not effective in my outdoor heater, there's still some amount left. It usually runs me $12-15 to refill versus like $25 for a swap and walk away with the same or similar amount of propane.
Exactly.....and you're right, they do fill it up. But my point was more that there's always some volume left in my bottle. It could be 10-20% or somewhere in that area where the output isn't enough to put my heater up to full bore and when I turn it up to high, it's on a constant low. But instead of giving it up, I just add on with the fill versus the replace and just pay for what's put in.You're generally going to walk away with more propane. When I started taking mine to Tractor Supply that's the first thing I noticed - the tank was heavier when I put it in the car and lasted longer running the forge. They fill them up to capacity.