It's been a while since I got my EPA card.
But back then, if a system has less than
50 pounds of refrigerant, it's legal to top
them off as often and as much as you want.

USA rules, y'know.

Christopher A. Young
Learn more about Jesus
www.lds.org
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wrote in message
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If you cannot locate and repair the leak, it is ILLEGA:L to regas
them. And if there is no leak, they will NOT loose gas.