Why do I hear water running in my pipes?
Why do I hear water running in my pipes? Water hammer, also referred to as hydraulic shock, is a loud bang or shattering sound within the walls. The sound is caused when water rushing through the pipes is suddenly stopped, or shut off and crashes against the valve. What does it mean when your water pipes make a hissing noise? Hissing Noise Definition. Water pipes that make a hiss or whoosh sound are indicative of water leaks. Listening for such sounds is the best way to determine if pipes are leaking. What to do when your water heater makes a...