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Say Goodbye To Water Hammer: Discover The Secret To Quieting Your Pipes

At a Glance

  • While this can be a startling and annoying experience, many homeowners wonder if water hammer is a persistent problem or if it will eventually go away on its own.
  • In cases where pipes are too small for the volume of water flowing through them, consider increasing the pipe size to reduce pressure buildup and the risk of water hammer.
  • However, if the cause is improper pipe sizing or a design flaw in the plumbing system, water hammer is likely to persist and may even worsen over time.

Water hammer, a common plumbing phenomenon, occurs when water flowing through pipes is abruptly stopped or changed in direction. This sudden change in flow generates a shock wave that travels through the pipes, resulting in a loud banging or hammering sound. While this can be a startling and annoying experience, many homeowners wonder if water hammer is a persistent problem or if it will eventually go away on its own. In this comprehensive guide, we will delve into the causes, consequences, and potential solutions for water hammer, addressing the question of whether it will disappear over time.

Exploring the Causes of Water Hammer

To fully understand water hammer, it is essential to identify the factors that contribute to its occurrence. Several key elements can trigger this phenomenon:

  • Rapid Valve Closure: When a valve is closed too quickly, it abruptly stops the flow of water, creating a shock wave that travels through the pipes. This is a common cause of water hammer in faucets, shower valves, and washing machine hoses.
  • Faulty Appliances: Some appliances, such as dishwashers and washing machines, can generate water hammer when they fill or drain quickly. This is due to the sudden surge of water entering or exiting the appliance.
  • Loose or Corroded Pipes: Loose or corroded pipes can vibrate and move when water flows through them. This movement can cause the pipes to knock against each other, producing a hammering sound.
  • Improperly Sized Pipes: Pipes that are too small for the volume of water flowing through them can experience water hammer. This is because the water flow is constricted, causing pressure to build up and eventually release with a loud bang.

Assessing the Consequences of Water Hammer

While water hammer may seem like a minor inconvenience, it can have several negative consequences if left unaddressed:

  • Damage to Pipes: The shock waves generated by water hammer can cause pipes to crack or burst, leading to costly repairs and potential flooding.
  • Leaks: Water hammer can loosen pipe joints and fittings, resulting in leaks. These leaks can waste water and increase utility bills.
  • Noise Disturbance: The loud banging sounds associated with water hammer can be disruptive and disturb the peace and quiet of your home.
  • Reduced Water Pressure: In severe cases, water hammer can reduce water pressure throughout the house, affecting the performance of appliances and fixtures.

Addressing Water Hammer: Effective Solutions

Fortunately, there are several effective solutions to address water hammer and prevent its recurrence:

  • Install Water Hammer Arrestors: Water hammer arrestors are devices that absorb the shock waves generated by water hammer, preventing them from traveling through the pipes. These devices are installed at strategic points in the plumbing system, such as near appliances and faucets.
  • Use Soft-Closing Valves: Soft-closing valves close gradually, reducing the sudden change in water flow that causes water hammer. These valves are available for faucets, shower valves, and washing machine hoses.
  • Secure Loose Pipes: Loose pipes should be properly secured using pipe clamps or hangers. This will prevent them from vibrating and knocking against each other, eliminating a potential source of water hammer.
  • Replace Corroded Pipes: Corroded pipes should be replaced with new ones to prevent leaks and potential water hammer issues.
  • Increase Pipe Size: In cases where pipes are too small for the volume of water flowing through them, consider increasing the pipe size to reduce pressure buildup and the risk of water hammer.

Will Water Hammer Go Away on Its Own?

The persistence of water hammer depends on the underlying cause. If the problem is caused by a faulty appliance or a loose pipe, it may disappear once the issue is resolved. However, if the cause is improper pipe sizing or a design flaw in the plumbing system, water hammer is likely to persist and may even worsen over time. Therefore, it is crucial to identify and address the root cause of the problem to achieve a lasting solution.

Preventive Measures to Avoid Water Hammer

Proactive steps can be taken to prevent water hammer from occurring in the first place:

  • Avoid Rapid Valve Closure: Close valves slowly and gradually to prevent sudden changes in water flow.
  • Install Pressure-Reducing Valves: Pressure-reducing valves can help regulate water pressure throughout the house, reducing the risk of water hammer.
  • Maintain Appliances Properly: Regularly inspect and maintain appliances that use water, such as dishwashers and washing machines, to ensure they are functioning correctly and not contributing to water hammer.

The Bottom Line: Taking Control of Water Hammer

Water hammer is a common plumbing issue that can cause damage to pipes, leaks, noise disturbance, and reduced water pressure. While it may persist in some cases, it is crucial to identify and address the underlying cause to prevent further problems. By implementing effective solutions such as installing water hammer arrestors, using soft-closing valves, and securing loose pipes, homeowners can effectively eliminate water hammer and restore peace and quiet to their homes.

Frequently Discussed Topics

Q1: Can water hammer cause pipes to burst?

A: Yes, the shock waves generated by water hammer can cause pipes to crack or burst, leading to costly repairs and potential flooding.

Q2: How can I tell if water hammer is causing leaks in my pipes?

A: Check for signs of water damage around pipe joints and fittings. If you notice dampness, discoloration, or mold growth, it may indicate a leak caused by water hammer.

Q3: Is it safe to ignore water hammer?

A: No, ignoring water hammer can lead to more severe problems such as pipe damage, leaks, and reduced water pressure. It is important to address the issue promptly to prevent costly repairs and ensure the longevity of your plumbing system.

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About the Author
Michael Thompson is an expert in all things related to power tools. With over 15 years of experience working at Ace Hardware stores across North Carolina, Michael has developed an in-depth knowledge of drills, saws, sanders and every type of power tool on the market. Outside of his job in...