Water faucet hammering and makes noise when running water. A noisy faucet can be caused by a few different parts. Water supply components may be faulty or worn out. Checking all of the water supply parts can help you determine and fix the noise. A noisy water faucet can mean a part in the water supply system is vibrating. If a part is vibrating a sound will be heard. A worn or faulty washer, cartridge, seal, spindle, gasket, or check valve in the water supply system or in the faucet can cause the noise. These issues can cause a humming, hammering, banging, knocking, or vibration noises. To determine which part is causing this you will need to troubleshoot the water supply system and faucet.
Water hammer can be loud noises that start out as a banging or hitting noise. This can also produce a noise that echoes loudly. When you hear these noises when you quickly open a kitchen or bathroom faucet, it means there is most likely air trapped in the water pipes.
A common issue that causes the “faucet vibrating noise” is when the water supply valves to the faucet are not completely open. When this happens, the water that flows through the valve is constricted and vibrates the inside of the valve. This reaction then vibrates the faucet and makes the common hammering noise. When high pressure water enters the water valve, a worn out washer or seal can be moved back and forth rapidly and cause the vibration noise. Fully open the water valves to rule the valves out when troubleshooting a noisy faucet. See video below for help…
To fix any hammering noise coming from your kitchen or bathroom faucet: Turn the faucet on. Listen for the hammering sound. Go under the sink and listen for what part is making the sound (plumbing under sinks vary). Isolate the part making the sound. Find the part that is creating the loud hammering noise. This part is the one that needs to be replaced or possibly repaired. If you do try and repair a plumbing part, always use a silicone type of grease when lubing the seals or gaskets. Do not use normal petroleum jelly.
TROUBLESHOOTING A FAUCET MAKING NOISE
WATER SUPPLY VALVES NOT FULLY OPEN
– The hot or cold water valves are NOT FULLY OPEN.
– Partially closed water valves will cause the knocking or vibrating noise issue.
– Locate valves under sink and physically check to be sure hot and cold valves are fully open.
– Make sure the hot and cold water valves are FULLY OPEN.
HOME WATER PRESSURE REGULATOR
– Water pressure regulator may be set too high.
– Excessively high water pressure can cause the hammering vibrating sound.
– Check water pressure gauge or regulator to ensure water pressure is set correctly.
– If water pressure is set too high, turn down to the appropriate pressure.
WATER PIPE HITTING WALL
– Water going through water pipe vibrates.
– The water piping may be vibrating against the wall.
– This vibrating can cause the sound.
– Isolate the water pipe that is vibrating.
– Use a water pipe clamp and attach it securely to the wall to stop it from vibrating.
WORN OUT WATER SUPPLY VALVES
– Water valve is worn out and causing the noise.
– Worn out or deformed washer in the water valve can cause the vibrating noise.
– Troubleshoot if the cold or hot water valve is the issue.
– Remove and replace the water valve causing the issue.
FAULTY WATER FAUCET PARTS
– Faulty spindle on a hot and cold faucet can cause the noise.
– The spindle becomes worn and will cause hammering.
– Remove and replace the faulty spindle.
FAULTY MIXER TAP FAUCET PARTS
– Faulty cartridge on a mixer tap faucet can cause the noise.
– The cartridge becomes worn and will cause hammering.
– Remove and replace the faulty cartridge.
AIR TRAPPED IN WATER LINES
– Water lines have air trapped inside.
– Occurs when water has been turned off or not in use over time.
– Turn the faucet on and run the water to flush the air out.
– After a few minutes of flushing air, turn the faucet off for 5 minutes.
– May need to install air chamber silencers or water hammer arrestor if problem is not a temporary one.
The following parts of a water supply system can cause noise:
- Water cartridge in mixer tap faucet
- Spindle on a hot and cold faucet
- Rubber seals in water valves
- Washers in water valves
- Teflon tape hanging into water supply
- Loose water pipe hitting wall
- Home water pressure regulator issues
If you need further help with a noisy faucet please leave the problem you are having with a full description in the question box below.