I'm plumbing a bypass into a new auxiliary hot water heater installation and bought some 3/4" quarter turn sweat ball valves at the local big box store. I've done my share of copper plumbing and haven't encountered sweat fittings as loose as these BV - the pipe actually wobbles a bit in the fitting. Is this acceptable for a sweat joint? I think not and I'm going to take these Made in China BV back and try to find a brand that is made elsewhere.
Rick
Rick