I have a question regarding banging bathroom pipes. We live in a
newly constructed house...it's about 6 months old. We notice that
about 30 min to 1 hr after we finish taking a shower in our master
bath (2nd floor), we hear a single bang from the water pipes (we
assume). We may hear it again 5-10 minutes later. Does anyone have
any idea what causes this and if the fix is easy? If it's easy, we
may try to do it ourselves rather than call our builder. I have read
several postings describing banging when the water is turned on or
immediately after it's turned off, but this does not describe our
situation. Any thoughts would be greatly appreciately.
Sounds like expansion/contraction issue. The Hot supply pipe
expands and has to move lengthwise. Has to move back as it
cools. If the pipe goes thru a very tight hole in a joist,
for example, it can make weird noises as it jerks.
Probably gonna be tough to fix and the builder will blow you off.
"Oh...it'll wear in..."
Anyway, that's my theory.
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