How to Solve Water Pipes Making Knocking Noise

Have you ever been startled by loud banging or knocking noises coming from your water pipes? Not only can it be annoying, but it can also be a sign of a serious plumbing issue. In this article, we will explore the causes of water pipes making knocking noise and provide solutions to fix the problem.

What Causes Water Pipes to Make Knocking Noise?

Water hammer is the most common cause of knocking noises in water pipes. It happens when the water flow is suddenly stopped or redirected, causing a shockwave that reverberates through the pipes. This can occur when you turn off a faucet or valve too quickly or when a water-using appliance like a washing machine or dishwasher starts or stops.

Another possible cause is loose pipes. If the pipes are not properly secured, they can move around when water flows through them, creating knocking sounds.

How to Fix Water Pipes Making Knocking Noise?

Install Water Hammer Arrestors: Water hammer arrestors are devices that absorb the shockwaves and prevent them from reverberating through the pipes. They are relatively easy to install and can be added to your existing plumbing system.
Adjust Water Pressure: High water pressure can contribute to water hammer. Check your water pressure and if it's above 80 psi, consider installing a pressure-reducing valve to lower the pressure.
Secure Loose Pipes: If you can access the loose pipes, use pipe hangers or brackets to secure them to the wall or floor. If the pipes are inside a wall or ceiling, it's best to hire a professional plumber to fix them.
Add Air Chambers: Air chambers are vertical pipes that are capped with a valve and filled with air. They act as shock absorbers and help prevent water hammer. If you don't have air chambers in your plumbing system, consider adding them.

Frequently Asked Questions:

Q: Are knocking noises in water pipes dangerous?

A: While they are not necessarily dangerous, they can be a sign of a serious plumbing issue that needs to be addressed.

Q: Can water hammer cause damage to my plumbing system?

A: Yes, water hammer can cause damage to pipes, joints, and valves over time.

Q: How do I know if I need to install water hammer arrestors?

A: If you hear loud banging or knocking noises coming from your water pipes, it's a good idea to install water hammer arrestors.

Q: Can I install water hammer arrestors myself?

A: Yes, water hammer arrestors are relatively easy to install and can be added to your existing plumbing system.

Q: What should I do if the knocking noises persist after trying these solutions?

A: If the knocking noises persist, it's best to contact a professional plumber to diagnose and fix the problem.

Conclusion:

Water pipes making knocking noise can be a nuisance, but they can also be a sign of a serious plumbing issue. By understanding the causes and solutions, you can prevent damage to your plumbing system and restore peace and quiet to your home. Don't hesitate to seek professional help if you're not comfortable fixing the problem yourself.