Whether it’s in the bathroom, kitchen, or laundry room, a loud banging noise coming from your pipes is usually indicative of a plumbing problem. Often referred to as “water hammer,” this phenomenon is common, yet many homeowners are unfamiliar with what’s causing the noises and how they can stop it. Here are a few common questions people have about it. 

4 FAQ About Water Hammer

What is it?

Also known as “hydraulic shock,” water hammer is a condition that occurs when the water flow within a pipe is abruptly interrupted. Since the water has nowhere to go in a contained area, it creates pressure. What you hear is the impact of that pressure as it moves like a shock wave through your plumbing. The sound is caused by the pressurized water hammering against the pipes, hence the name.

What contributes to this?

Water hammer is more likely to happen when the water pressure is too high. Consider what happens when you fully open a faucet too quickly: the water will rush out and create a big splash. If this happened inside a small container, like a pipe, the water would hit the other side with force.

However, if you open the faucet just a little, the flow will be much more gentle. Lowering the water pressure in your home has a similar effect. Aside from pressure, loosely attached pipes can also be to blame because they’re much easier to rattle.

Can it damage my plumbing?

Initially, water hammer won’t do too much to your pipes. But, if ignored for too long, the force can start to erode the interior of your piping. If the pipes are too damaged, water hammer could eventually cause them to burst. The sooner you address the issue, the better. 

How can I prevent water hammer? 

Aside from adjusting the pressure and checking the pipe fittings, the best way to stop water hammer is to have an air chamber installed close to the location where the noise is occurring.

Air chambers are empty, vertical pipes that offer space for the shock wave to enter if needed. If your current piping doesn’t leave much room, have a water hammer arrestor installed instead. These mechanical components have their own air- or gas-filled chamber that is designed to absorb the shock.

If you’re experiencing water hammer in your home, rely on Valley Mechanical to fix it. Based in Naples, NY, this family-owned and -operated plumbing and HVAC company has served Ontario County and the surrounding region for more than 20 years. Their highly trained, certified, and experienced technicians will know what solution is best for your situation. To get started, send them a message on their website or call (585) 374-6866.