#3091
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From oceanfloor:
Q. When they refill the tanks, do they just top them off or do they purge them and refill?
They just top them off. Most shops will charge for a full fill, even if it’s just 500 psi, but you might find a shop that won’t charge you anything if it’s less than 800 psi, or will just charge for the amount they give you.
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