Widespread_Looting OP t1_jcpf13t wrote on March 18, 2023 at 3:22 PM

Thanks for all the input, I'm relieved nobody said "oh yeah, that's a leak." This is our first winter in the house so I'll be interested to see how the temp and humidity changes affect the sound. I don't recall hearing anything last summer but can't really say I was listening either.

sensitive_kitten t1_jcpwldv wrote on March 18, 2023 at 5:21 PM

If it was a leak it wouldn't only be heard when the water is moving truth the pipes. It would be constant. Most leaks aren't audible either, that's why they can be so destructive.

OnTheClockShits t1_jcq8psv wrote on March 18, 2023 at 6:44 PM

I too am relieved nobody said it's a leak because our house that we moved into like 3 years ago has a very similar tapping noise, happens when we shower and sometimes with our sinks. I haven't seen any water damage in all this time, so was hoping it was just thermal expansion. Definitely not water hammer, that's pretty distinctive sounding and really only happens right when the water is turned on.