If the noise occurs when you shut off the water, then water hammer might be the culprit. In this case, the stream of water ...

Q: Every time I turn off the water faucet in my laundry room, it sounds like someone is banging on the wall. Is my house possessed by evil spirits? Please help. The noise is frightening my kids. A: ...

Water hammer is a dangerous hydraulic shockwave caused when fast-moving water in pipes is suddenly stopped, often by quickly closing a valve. This sudden momentum change generates a spike in pressure ...