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by c4mpute 1164 days ago
Leaks are common with quick-install couplings and shoddy soldering. They seem to be more prevalent in the US, because qualification requirements for the installation of A/C and heatpumps are low to nonexistent, and anyone can just visit the DIY store and get refrigerant refills. So a leak isn't much of a problem beyond getting a cheap refill for most people, so craftsmen don't prioritize leakproofness.