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Do you hear knocking pipes after you flush the toilet or when the washing machine finishes filling? If so, your home in Jackson, Mississippi, might have a plumbing problem known as water hammer. Here’s what you need to know:

What Is Water Hammer?

The sound of knocking pipes can feel unsettling, especially if you don’t know the cause. Water hammer happens when a water valve suddenly shuts off. All the water that was flowing through the pipes crashes into the valve. As a result, this shakes your pipes and creates a loud knocking noise that you hear behind your walls. While it might sound like your pipes or walls might burst or collapse at any moment, water hammer is more of an annoyance than a danger.

How Do You Fix Water Hammer?

Determining how to fix water hammer in your home will depend on its age. Most homes built prior to the 1960s have air chambers. These T-sections of piping contain air and absorb shock from water impact. Over time, though, water can displace the chamber’s air pocket. If your pipes have air chambers, you can reduce water hammer by draining all the water out of your home’s plumbing system and refilling it. A professional plumber can help with the process.

If your home was built after the 1960s, it likely has water hammer arrestors installed in the pipes. Water hammer arrestors are a more modern solution than air chambers; they’re spring-loaded and rarely malfunction. But if you still hear knocking pipes and your home was built after the 1960s, there might be another problem that needs attention:

  • High water pressure causes loud knocking and noises.
  • Sediment buildup in your water heater can result in loud banging.

Are you perplexed by knocking pipes in your home? Contact a professional plumber to check the situation and resolve the plumbing problem immediately. Call Dent Air Conditioning at 601-912-0535 to schedule an inspection.

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