Reply To: Loud thumping noise in wall after toilet has filled Home › Forums › Public Forums › General Plumbing › Loud thumping noise in wall after toilet has filled › Reply To: Loud thumping noise in wall after toilet has filled 25 May 2003 at 12:08 pm #294506 Retired plbg1Participant Sounds like you have to much water press. if you have a PRv on maun line turn it down. If not turn your valves on the fixtures down.
