Unless you’re running the water, you shouldn’t hear much of anything from your pipes. However, the pipes in some homes may produce a loud banging or knocking noise, which is what is commonly called a water hammer. Before you call your plumber, it can help to familiarize yourself with this phenomenon, so you know what’s causing the issue, and it may even save you some money.

FAQ About a Water Hammer

What causes a water hammer?

The banging noise from a water hammer is the end result that gravity has on the flow of water in your home’s pipes. As you turn on the water, a rapid flow of water will trigger, but as you turn off the valve, the flow of water will have nowhere to go. The sound you hear is the flow of water hitting the blockage that’s caused by closing off the valve.

When should you call a plumber?

While there is a common-sense explanation for a water hammer occurring, that doesn’t mean the phenomenon is completely harmless. The sudden stop and reverse flow of water create a vibration that can cause the pipes to rattle and knock into one another. If this happens often enough, your pipes may become damaged, and fittings may loosen.

Are new pipes affected by a water hammer? 

New plumbing systems are designed differently than older pipes, incorporating what is commonly called an air cushion. This feature creates a pocket of air in the pipes that reduces the risk of water hammers occurring. Over time, the air cushion can become bogged down with water, making it more likely that a water hammer will occur. 

What can your plumbing contractor do?

A technician experienced in sewer cleaning and plumbing services can help you stop water hammers from occurring. While you might assume this will require updating your entire plumbing system, that probably won’t be necessary. Instead, your plumber may install a water hammer arrestor. This is a device that functions similarly to an air cushion, except it fills with water or gas to reduce the chance that it will become waterlogged. The air or gas chamber is sealed by a piston or diaphragm to ensure they will last longer than a traditional air cushion.

 

If you’re experiencing water flow problems or you hear water hammers, contact a plumber soon to avoid extensive and costly damages. The plumbing professionals at Passanisi Services put their customers first by answering every call promptly and performing service at the scheduled time. To learn about the quality services they offer, visit their website. You can make an appointment by calling (440) 984-2322.