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Silence Noisy Water Pipes

Unlike traditional water chambers, which eventually fill with water, water hammer arresters are sealed, so they’re more effective at stopping banging pipes. They can also be screwed in place in a variety of positions.

By the DIY experts of The Family Handyman Magazine

Installing water hammer arresters

Water pipes for washing machines often bang and vibrate when the water shuts off. Quiet those pipes and prevent possible leaks by installing screw-on water hammer arresters at the water valves that serve the washing machine. Sealed water hammer arresters like the one we used here (made by Sioux Chief and sold at home centers and plumbing supply stores) are perfect for this situation. They’re designed to screw directly onto your laundry valve and accept the hose fittings from your washing machine. The arresters will operate in any position, so they’ll work even if your supply valves are installed at weird angles.

Sprinkler timers on your outside hose bibs can also cause water hammer because they shut off so quickly. If your pipes bang when the timers shut off, install a screw-on arrester in front of the timer. Make sure you remove arresters in the fall if you live in the frost belt.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

    • Adjustable wrench
    • Slip joint pliers

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

    • Water hammer arrester
    • Teflon tape

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