Internet Scholar

The loud thudding sound that follows is known as a water hammer. A water hammer occurs when a water valve is suddenly shut off.

Plumbing Blueprint Plumbing Diy Plumbing Plumbing Repair

Generally water pipes are anchored every 6 to 8 feet horizontally and 8 to 10 feet vertically.

Pipes rattling when water is turned on. These straps consist of metal plumber s tape or the vinyl coated nail in hooks and hangers that attach pipes to framing. Generally though there is going to be on area along the many feet of piping where the energy is released because pipes aren t secured well and you hear the result. You may also have high water pressure.

If your pipes are making a loud vibrating noise or a banging sound when water is turned off this is likely the issue. There s a loud banging noise in the water pipes when the sprinkler system turns off. It sounds like a water hammer problem possibly coupled with water pipes that are not properly secured to the framing.

While many people incorrectly use the term water hammer to mean any loud banging in your pipes it s actually a specific phenomenon. When your water pressure is too high for the system s capacity it can leave your pipes vibrating. Noisy rattling pipes called water hammer.

Overly high water pressure can occur in any home but is particularly common in homes that rely on well water. Water moving through your pipes can create a vacuum which is normally dispelled by a vent that pokes out through the roof near your faucet or plumbing fixture. If the pipes are improperly anchored when the water is turned on the water pressure will cause them to rattle and shake creating a banging sound as they bang against each other and the pipe anchors.

Sometimes a water hammer can occur when a pipe mounting strap is loose. The pipes are noisy when you turn water on and after you shut it off. A valve stops the water suddenly as it is turned off and the approaching water slams into it as it s forced to stop.

It happens with both hot and cold water. Three reasons your pipes are rattling water hammer. This vibration may result in a humming noise especially when the water is running.

A loose pipe strap allows the pipe to freely vibrate against framing members as water is turned on and off. Besides being alarming water hammer can potentially damage joints and connections in the water pipe itself. This banging or rattling noise is often referred to as water hammer and it s caused by a blocked vent pipe in your plumbing.

In your case the rattle happens when you turn your faucet on and it s coming from somewhere in the walls based on these two factors i ll deduce that when the faucet is turned on the movement of the water running through the lines is rattling a pipe somewhere a pipe that has loosened from a strap that once held it firmly in place. When water is running and is then suddenly turned off the rushing liquid has no place to go and slams against the shut off valve.