My plumber is putting together a new copper plumbing system and is
using running water to cool down the pieces he has just soldered.
Does this alter the properties of the pipe and/or fittings, or affect
the performance of the plumbing system over the long term?
Thanks in advance for your helpful replies.
You will usually get away with that but a guy who cares will just wet the pipe
near the joint. Some folks will make a case for thermal shock and the
difference in expansion rate between solder and copper weakening the joint. I
bet you can't do it on a job where an engineer is watching.
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