Tap/clunk sound from water line (not water hammer)

Users who are viewing this thread

Grebus

New Member
Messages
12
Reaction score
0
Points
1
Location
Edmonds, Washington
I have a noise coming from the main water line (copper) near where it enters my house inside a wall--this started this winter and we have been in the house for 3+ years. When a decent amount of water is used (a toilet is flushed or someone takes a shower) a soft tapping sound is heard from the pipe for a few seconds. Then after a few minutes the pipe will make a louder tap/clunk sound about once every 30 seconds, then about once a minute, then slower and slower, and eventually stops until the next time a toilet is flushed or whatever and the pattern repeats.

My research has me thinking this is pipe expansion/contraction and that the pipe is hitting or sliding on a wood stud as it's cooled by the cold water entering it. For what it's worth, this water line runs in the vicinity of one of the hydronic lines of my heating system, and my water pressure is around 75-80 psi. Does this sound like the most likely problem, and should I be concerned to the point of calling a plumber and/or opening up the wall? Thanks.
 
Last edited:
Top
Hey, wait a minute.

This is awkward, but...

It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.

If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
I've Disabled AdBlock    No Thanks