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How To: Install Water Hammer Arrestors

SharkBite water hammer arrestors provide maintenance-free protection against banging pipe noise caused by the sudden change in water pressure when using plumbing fixtures.  

SharkBite offers water hammer arrestors for any project type including traditional, compression, brass push-to-connect, crimp and toilet in addition to washing machine hammer arrestors. These arrestors can be installed vertically or horizontally and should be placed within 6 ft. of the fixture or valve causing the noise.  

How to Install a Water Hammer Arrestor on a Washing Machine Outlet Box 

  1. Shut off the main water supply. Relieve pressure and drain supply lines by opening a nearby faucet. To connect the water hammer arrestor directly to a fixture, disconnect the supply line from your stop valve.  
  2. Thread one end of the hammer arrestor onto the valve and reconnect the supply line to the other end.  
  3. Hand tighten and then use a wrench for a quarter turn. Be careful not to overtighten.  
  4. Turn the stop valve and the water supply back on. 
  5. Check to ensure there are no leaks or loose connections.  

Watch more: How To: Install a Washing Machine Outlet Box