Tag: sounds

What’s That Scary Banging Sound Coming From the Walls - and What Can Be Done About It?

In the middle of a chilly October night, with the wind howling outside and the shadows looking extra sinister, the last thing any homeowner wants is to hear an ominous banging sound coming from inside the house. After all, it’s hard not to let the imagination run wild on such a night! 

But there’s no need to fear - that terrifying sound is most likely not a villainous entity bent on torment, but merely a common plumbing issue called water hammer. But that’s not to say it’s something to scoff at. Water hammer isn’t just a startling and annoying sound; it can also be a force of destruction for the home’s plumbing system. 

Water Hammer Explained

Water hammer, also known as hydraulic shock, is exactly what it sounds like - water hammering against a valve inside a supply line. Since the water in a home’s supply lines is under pressure, it tends to have a lot of momentum behind it as it moves to various fixtures. When this momentum is suddenly halted, as when a valve is abruptly closed, the water slams violently into the closed valve, creating a pressure surge or shockwave inside the pipe, which produces a loud bang. In some cases, it may also produce a rapid series of bangs or a shuddering sound as the shockwave propagates and travels back and forth through the pipe. 

The Dangers of Water Hammer

Unfortunately, the effects of water hammer go well beyond the unnerving sound it makes. The shockwave can loosen pipe joints and connections with fixtures, leading to leaks both small and large. The pressure spike can even rupture pipes, particularly if they’re older, leading to a need for replacement. Water hammer can also damage valves or cause appliances to malfunction.

In some cases, the root cause of water hammer is excessive residential water pressure, which can exacerbate the effects of water hammer and cause plenty of damage to the plumbing system on its own.

Fixing Water Hammer

The good thing about water hammer is that it makes itself known from the start - catching it early is the best way to avoid costly appliance or pipe repairs. But once it’s been identified, the next step is to diagnose the underlying cause, which is usually best handled by a professional plumber. 

If the issue is with the home’s water pressure, a professional can adjust the pressure or install a water pressure regulator. They can also check to make sure the home’s supply system is equipped with air chambers or standpipes and that they’re working correctly. These vertical sections of pipes act as relief conduits to help absorb pressure spikes, thus eliminating water hammer. 

Suppose the issue is with a specific appliance that has an aggressive valve. In that case, the plumbing service technician can install a water hammer arrestor in the appliance’s supply line to absorb the shock. No matter the cause, the expertise of a trusted local plumber can help homeowners rest easy and get back to enjoying their autumn nights in peace!

Trust About Plumbing Inc.

About Plumbing Inc. has been serving Jefferson County, MO with pride for years. Their background-checked and drug-tested technicians are punctual, courteous, and professional, and always leave every home better than they found it. They offer up-front pricing, tailored solutions, and a 100% satisfaction guarantee on every job. Call now for plumbing services!

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