Have you ever noticed a loud banging or knocking sound coming from your pipes after turning
off a faucet or appliance? That unsettling noise is likely water hammer—a common plumbing
issue that can be both annoying and potentially damaging. In this blog, we’ll break down what
water hammer is, why it happens, and how you can deal with it effectively.
What is Water Hammer?
Water hammer occurs when the flow of water through your pipes is abruptly stopped or
redirected, creating a pressure surge that reverberates through the system. This sudden jolt
can cause the pipes to shake, rattle, and produce that familiar banging noise. While it might
seem harmless, over time, this repeated pressure can lead to wear and tear on your plumbing
system.
Why Does Water Hammer Happen?
There are a few common reasons behind water hammer:
1.Quick-Shut Valves: Appliances like washing machines or dishwashers that quickly shut off
water flow can cause a sudden stop, resulting in water hammer.
2. High Water Pressure: If your home’s water pressure is too high, it can make water hammer
more likely when the flow is suddenly halted.
3. Loose Pipes: Pipes that aren’t properly secured can move or vibrate more freely, making the
noise even more pronounced.
4. Faulty Air Chambers: Air chambers, designed to absorb the shock from water hammer, can
fill with water over time, losing their effectiveness.
Tips for Dealing with Water Hammer
While water hammer can be frustrating, there are several ways to tackle the issue:
1.Check and Adjust Water Pressure: High water pressure can contribute to water hammer.
Use a pressure gauge to check your home’s water pressure, and if it’s too high (generally
above 60 psi), consider installing a pressure-reducing valve.
2. Secure Loose Pipes: Inspect your plumbing system to ensure all pipes are securely
fastened. Use pipe clamps or straps to anchor loose pipes, which can help minimize movement
and reduce noise.
3. Drain Air Chambers: If your home has air chambers, they may need to be drained and
refilled with air in order to function properly. To do this, turn off the main water supply, open
the highest faucet in your home, and then drain the system by opening the lowest faucet or
valve. Once drained, close the lowest faucet and turn the water back on.
4. Call The Drain Experts: If the water hammer continues despite your efforts, it’s time to
bring in the experts. Our professional plumbers at Drain Experts can assess your system,
pinpoint the cause, and provide a tailored solution.
Contact Us!
Water hammer isn’t just a noisy inconvenience—it’s a sign that something’s off with your
plumbing. Understanding what causes it and knowing how to address it can save you from
more serious issues down the road. If you’re tired of dealing with that relentless banging or
have other plumbing concerns, it’s time to call in the professionals.
Contact Drain Experts Plumbing for a free quote and fast, reliable service. We’re available
24/7 to tackle your plumbing problems, big or small. Reach us at 416-602-7886 or 647-7
EXPERT (739-7378), or email us at info@drainexpertsplumbing.ca. Let us help you keep your
plumbing in top shape!