It could be the water hammer effect, rattling noise, and vibration when turning on or off this faucet. If you can find a way to isolate the sound, try adjusting your water pressure valve. Turning it up will lessen the sound and vice versa.
One of the most occurring causes of a knocking noise from your faucet when turned on is related to something known as a “water hammer.” You might have heard of this before because it’s also often called “hammering pipes.”
In this article, we’ll tell you how to get rid of the knocking noise when the faucet is turned on. Let’s begin!
How To Get Rid Of Knocking Noise When Faucet Is Turned On
A weird knocking sound makes you uncomfortable or even scary, especially when no one’s home.
It might take a while to figure out where this sound is arising and can make you suspicious if you binge-watch too many murder documentaries like us. Pun Intended.
Don’t worry; no one’s home; your faucet is making a hammering sound, and we’ll tell you how to stop it.
A Loose Washer
The washer is most likely to blame if your faucet makes a banging noise when you turn it on. The washer, which is often made of rubber or plastic, lies between the sink and the faucet (the little rubber ring). This commonly becomes loose with time, which will cause your water to knock when you turn it on.
Any hardware shop will have a replacement washer for about $5 if you wish to solve this issue on your own. It will not take more than a few minutes to do yourself and should last just as long before being damaged or moving from its spot as your old one did.
Bad Shut-Off Valve
The shutoff valve may blame you if you hear a knocking sound when the faucet is turned on. The shutoff valve manages the water flow to your sink. The pipes that link it to your cold and hot water are often found under your sink.
The amount of water that comes from it may be adjusted by turning a handle on it. If an underground pipe system connects your pipelines, a damaged or broken valve might result in excessive pressure inside your pipes and loud noises when you turn on a faucet in another room.
An Empty Pipe Or Valve
If the pipe is empty, you will hear the knocking noise. If it’s full, you won’t.
But if the pipe is full and you want to find out if there are telltale knocks in there somewhere, it can be hard to hear them over all that rushing water. Luckily, if your pipes are empty (or nearly so), then it’s easier to hear their little tings and tangs!
A Loose Diverter
The diverter is the piece that controls the water flow from your faucet. It can become loose or broken, causing it to stick and create knocking noises. If you think this is the case with your tap, you’ll need to replace it.
The diverter is usually located inside the faucet. It can be accessed by turning off your sink’s water supply (and draining all of its contents), removing its handle, and unscrewing the cartridge at its base. Once you’ve done this, look for a small rubber cap inside where you removed your old cartridge—remove this too if necessary to see any debris or buildup in there.
If there are no obvious obstructions in there, but things still feel stuck or stiff when twisting them around, try using some WD-40 on a cloth or cotton swab until things loosen up again!
These Are Some Common Causes Of The Knocking Noise You Hear When You Turn On Your Faucet
If you hear a knocking and hammering sound when you turn on your faucet, one of these things is likely the cause:
- A loose washer in your faucet. This is the most likely culprit and can be fixed by replacing the washer with an appropriate size.
- Take apart your faucet and replace it with an inch-and-a-half or two inches (depending on what type of sink you have) thick rubber washer that matches the diameter of your current one. Periodically check for leaks after tightening all connections back into place. If this doesn’t solve your problem, move on to other ideas below!
- A bad shutoff valve under your sink needs to be replaced with a new one (or at least cleaned out). Shutoff valves are located behind each pipe coming from either side of a sink’s basin so you can access them easily.
- if there comes a time when they need repairs made by turning off water supply lines to make sure no damage occurs during repairs being done elsewhere within home’s plumbing system like pipes connected underneath floors where leak detection devices cannot reach without cutting away pieces first which could lead them getting damaged while trying doing so).
Frequently Asked Questions (FAQs)
Can we stop the knocking noise when the faucet is turned on?
Yes, we can easily get rid of the knocking sound. You just have to follow the above procedure.
What is a water hammer arrestor?
A plumbing connection called a water hammer arrestor comprises a tee and a sealed cylindrical chamber 3 to 4 inches in length. A spring-loaded piston that rotates back and forth within the air-filled chamber absorbs the additional pressure in the pipelines that are the source of the pounding.
How Can I Fix My Water Pipes That Are Knocking?
Often, banging pipes are just the result of slack elbows or valves throughout your home that aren’t fully open or closed. Sometimes air pockets between surfaces might cause the pipe’s base to vibrate against the other surface.
You might need to build new plumbing if such causes don’t work. Thankfully, you can resolve most of these issues without contacting a plumber if you follow the above methods.