: After our toilet finishes filling (after being flushed), the water supply pipes in our shower bang! This also happens when we shut the water off in the bathroom sink. However, if the cold water is running in either the sink or shower and the toilet finishes filling, there is no banging noise. Have checked the water pressure (supply to house is 50#) - any suggestions would be appreciated.
Sounds like the air chambers are filled with water(if there are any installed) and the piping in the wall is not securely strapped. Try shutting off the water and draining the system by the shower. then turn ot back on. Otherwise you will have to open the wall and secure the pipes.