How To Fix Water Hammer Arrestor

A loud knocking noise that occurs just after a faucet is turned off is known as a water hammer and can be fixed by installing a water hammer arrestor installing this device is simple but here is a list of do s and don ts that will ensure that the project goes as smoothly as possible.

How to fix water hammer arrestor. The chamber loses air as water come and go so it becomes less shock absorbent over time causing that unwanted hammering. Most water hammer arrestors available today are easy to install and they feature screw type connectors that attach between a water supply line and a shut off valve view example on amazon. There is a small plumbing fixture you can add to your pipes called a water hammer arrestor. This cushions the pipes and helps prevent water hammer. Water hammer in pipes can be kept to a minimum by installing a new air chamber or a water hammer arrestor.

Alternatively you can install water hammer arrestors in such places. Now reopen your main water valve and see if the affected appliance or tap no longer makes the thudding sound. The washer will fill more slowly but it will still fill to the right water level. This works by draining any air chambers of water and replacing it with air. Fortunately water hammer is still not at all difficult to fix.

If the issue isn t solved you may have to have a professional install an air chamber install water hammer arresters or adjust water pressure reduction valves. An air chamber is made of copper pipe that is used for absorbing water pressure by compressing it within the chamber. If an arrester doesn t eliminate the water hammer reduce peak flow by partially closing the water supply valves.