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Can water hammer be fixed? the surprising truth you need to know!

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er,...

What To Know

  • It occurs when water flowing through a pipe is suddenly stopped, causing the water to slam into the end of the pipe and creating a shock wave.
  • When you close a valve quickly, the water flowing through the pipe is suddenly stopped, which can create a shock wave.
  • This can happen when a valve is closed quickly, when a fixture is turned off, or when a washing machine or dishwasher stops filling.

Water hammer is a common plumbing problem that can cause loud banging noises in your pipes. It occurs when water flowing through a pipe is suddenly stopped, causing the water to slam into the end of the pipe and creating a shock wave. This shock wave can travel through the pipes and cause damage to fixtures and appliances.

The good news is that water hammer can be fixed. There are a number of different methods that can be used to prevent or reduce water hammer, including:

Water Hammer Arrestors

Water hammer arrestors are devices that are installed on pipes to absorb the shock wave created by water hammer. They are typically made of brass or copper and have a diaphragm or piston that moves to absorb the shock. Water hammer arrestors can be installed on individual fixtures or on the main water line coming into your home.

Air Chambers

Air chambers are sections of pipe that are filled with air. When water hammer occurs, the air in the chamber compresses, absorbing the shock wave. Air chambers can be installed on individual fixtures or on the main water line coming into your home.

Water Hammer Dampeners

Water hammer dampeners are devices that are installed on pipes to absorb the shock wave created by water hammer. They are typically made of rubber or plastic and have a diaphragm or piston that moves to absorb the shock. Water hammer dampeners can be installed on individual fixtures or on the main water line coming into your home.

Gradual Valve Closure

One of the most effective ways to prevent water hammer is to close valves gradually. When you close a valve quickly, the water flowing through the pipe is suddenly stopped, which can create a shock wave. By closing valves gradually, you can allow the water to slow down gradually, which will help to prevent water hammer.

Use Flexible Water Supply Lines

Flexible water supply lines can help to absorb the shock wave created by water hammer. These lines are made of a flexible material, such as rubber or plastic, which allows them to move slightly when water hammer occurs. This movement helps to absorb the shock wave and prevent damage to fixtures and appliances.

Secure Pipes Properly

Loose pipes can move when water hammer occurs, which can amplify the shock wave. By securing pipes properly, you can help to prevent them from moving and causing damage.

Replace Old or Worn Pipes

Old or worn pipes are more likely to experience water hammer. If you have old or worn pipes, it is a good idea to replace them with new pipes. This will help to prevent water hammer and other plumbing problems.

Takeaways: Water Hammer Be Gone!

Water hammer is a common plumbing problem, but it can be fixed. By using one or more of the methods described above, you can prevent or reduce water hammer in your home. This will help to protect your fixtures and appliances and make your home more comfortable.

Answers to Your Questions

Q: What causes water hammer?

A: Water hammer is caused when water flowing through a pipe is suddenly stopped. This can happen when a valve is closed quickly, when a fixture is turned off, or when a washing machine or dishwasher stops filling.

Q: What are the symptoms of water hammer?

A: The most common symptom of water hammer is a loud banging noise in the pipes. You may also notice that your fixtures shake or vibrate when water hammer occurs.

Q: How can I prevent water hammer?

A: There are a number of things you can do to prevent water hammer, including:

  • Closing valves gradually
  • Using flexible water supply lines
  • Securing pipes properly
  • Replacing old or worn pipes

Q: What should I do if I have water hammer?

A: If you have water hammer, there are a number of things you can do to fix it, including:

  • Installing water hammer arrestors
  • Installing air chambers
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Rob Sanders

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er, Rob takes pride in testing out the latest tools and gadgets to see how they can make home projects easier. When it comes to heating systems, he's evaluated over 50 different furnace and boiler models over the years. Rob founded Nurturing Homeaid with his business partner Jim in 2020 to provide homeowners with genuine product recommendations they can trust. In his free time, Rob enjoys remodeling old homes with his family and traveling to visit architectural landmarks across the country. He holds a bachelor's degree in Journalism from Syracuse University.
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