Tapping sound behind walls when sink/toilet running - could this be something aside from a leak? Submitted by Widespread_Looting t3_11upiwz on March 18, 2023 at 2:10 PM in DIY 19 comments 13
skydiver1958 t1_jcq2qk7 wrote on March 18, 2023 at 6:02 PM Thermal expansion/ contraction. Same thing in my house. Hard to fix without opening walls as a rule. Not uncommon in production builds. Nothing to worry about. Permalink 1
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