Knocking in Wall
I know this is super vague, we are hearing a consistent knocking in the wall (when not running water / middle of night). It sounds loudest when I put my ear to the wall by the shower also where the main waste pipe is (the big vertical one that spans all floors).
Already tried shutting off house water and restarting it. Any other simple diy checks before I call a pro?
Additional details – no water softener, house built 1960s US
Submitted March 23, 2021 at 10:23PM by Slickdilla
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