Delta Faucet Thumps When Turned On
The solution to a kitchen faucet making a clunking sound is to replace the two springs and rubber seats, as suggested by DIY Home Improvement Forum (2013). This is because the springs and rubber seats are essential for the proper functioning of a faucet, since they help create a tight seal when the handle is moved.

A thumping sound when turning on a single-handle Delta faucet can be caused by a low-flow strainer, according to TerryLove.com (2020). If a higher flow strainer does not solve the issue, then checking the sprayer hose for any kinks or blockages may help.
When turning on a kitchen faucet full blast to the hot water side, a series of fast thumps may occur, according to a thread on TerryLove.com from 2010. This sound is created by the pressure of the water resonating in the pipes throughout the house. It is possible that the issue could be caused by trapped air pockets in the pipes which can be released by running the water until the thumping stops.
Why is my faucet thumping?
If your Delta Faucet is thumping when you turn it on, it is likely due to either high water pressure or a build-up of sediment in the faucet itself (LivingScented.com, 2020). To ensure proper functioning, check the water pressure in your home and adjust the pressure regulator if necessary. Check for any sediment build-up that could be causing the issue.
How do I troubleshoot a Delta Faucet?
A video guide provides step-by-step instructions on how to troubleshoot a Delta® Kitchen Faucet with Touch2O® Technology (Delta Faucet, 2022). It covers common issues that can arise and offers solutions for each. Understanding the inner workings of your faucet can help prevent future problems.
How do I fix a noisy faucet?
Fixing a noisy faucet is easy to do and can be done in just a few steps. According to This Old House (2020), you can determine which water-supply line is creating the hammering noise by turning the faucet's hot water to the fully on position and then turning off the hot water and turning on the cold water. Replacing the washer or valve seat may be necessary depending on the age of the faucet.
Why is my faucet knocking?
When you turn on your water faucet and hear a knocking sound, it could be caused by high water pressure in your home, loose pipes, or air bubbles in the pipes. As reported in a study by the US Department of Energy in 2017, water pressure that exceeds 80 psi can cause abnormal noises and damage to your plumbing system.
How can I fix a clunking kitchen faucet?
The solution to a kitchen faucet making a clunking sound is to replace the two springs and rubber seats, as suggested by DIY Home Improvement Forum (2013). This is because the springs and rubber seats are essential for the proper functioning of a faucet, since they help create a tight seal when the handle is moved.
Why does the faucet jump?
The most likely cause of a faucet jumping when using the sprayer is a buildup of debris or sediment in the sprayer. To solve this, it is recommended to turn off the water supply and disassemble and remove all internal faucet components, then turn the water supply back on and let it run for one minute before reassembling the faucet. This flushes out the sediment, preventing it from clogging the sprayer.
(Source: Delta Faucet, 2020). It is also important to regularly clean and maintain your faucet to help prevent clogs and other issues.
A jumping kitchen faucet handle is a common plumbing issue caused by a worn out valve seat and/or washer. According to the American Society of Home Inspectors (ASHI, 2020), this problem is often due to wear on the faucet components or improper installation. If left unchecked, this issue can lead to leaking or complete failure of the faucet.
Can water hammer break faucets?
Yes, a water hammer can cause a faucet to thump. According to Hunker (2020), water hammer has been known to break faucets in half if left unmanaged, and can weaken the pipe joints and cause leaks. It is important to address water hammer issues as soon as possible to prevent further damage.
What causes water hammer?
Water hammer, also known as thumping in the water pipes, is caused by the sudden change of direction of incompressible water. This can happen when turning on the water or when a faucet is partially on. According to Hunker (2020), water hammer can also be caused by air bubbles trapped in the pipes, which can lead to a noisy banging sound when the water is turned on.
Water hammer is a common plumbing problem that causes a loud, jarring sound like a jackhammer when a faucet is turned on. According to the American Society of Plumbing Engineers (ASPE), it occurs when the momentum of flowing water is suddenly stopped by closing a valve or tap, resulting in water pressure building up in the pipes. This pressure sends shock waves throughout the system, causing the reverberating sound.
Water hammering in your kitchen sink can be easily stopped by following a few steps. According to the American Society of Plumbing Engineers, these steps include checking for air chambers in the pipes, replacing worn washers, and installing an air chamber or water hammer arrestor. Replacing worn valves can help reduce the shock generated by the water hammer.
What is water hammer?
Thumping noises coming from your faucet are likely caused by water hammer, which occurs when water changes direction suddenly and is incompressible. According to Hunker (2022), this sound is caused by a sudden change in water pressure. To reduce the pressure, install a water hammer arrestor, which is a device that works to absorb the shock of the sudden pressure change.
