What causes faucet noises such as "chattering" or "whistling"?

Faucet noises like "chattering" or "whistling" are typically caused by a defective internal assembly within the faucet itself. When components such as washers, cartridges, or seals become worn or damaged, they can create irregular flow patterns as water moves through the faucet. These irregularities can cause vibrations that lead to the characteristic chattering sound, or turbulence that produces a whistling noise.

Proper functioning of the internal assembly is crucial for smooth water flow. If the internal mechanisms are not able to manage the water pressure effectively, it can create these disruptive sounds, indicating that maintenance or replacement of the faucet components may be necessary to restore normal operation and eliminate the noise.

While high water pressure can contribute to noises in plumbing systems, it is the specific failure of the faucet's internal parts that directly leads to the chattering or whistling sounds associated with faucet operation. Therefore, addressing the internal assembly typically resolves these noise issues effectively.