Why is my toilet making a high pitched whistling sound?

Why is My Toilet Making High Pitched Sounds? If your toilet is making a high pitched sound or is making the wall around it vibrate every few minutes, it could be an issue with your toilet valve leaking. It could also mean your fill valve is not functioning properly as well.

What causes a toilet fill valve to whistle?





When the float drops low, the valve opens to let the tank refill. Once the water reaches the ideal level, the valve shuts tightly, preventing water from overflowing the tank. However, as fill valves age, the bits and pieces holding it together will start to deteriorate, resulting in the whistling or hissing sound.

How do I stop my toilet pipe from whistling?

After removing all the debris from the fill valve, flush the toilet once again and check if the toilet is still whistling. If so, then it’s time to replace the fill valve. If you’ve got an old metal ballcock valve toilet, you can replace the gasket and stop the toilet from producing a whistling sound.

Why does toilet squeal after flushing?

HIGH-PITCHED SQUEALING OR WHISTLING:

If you notice that after you flush your toilet is making a high-pitched noise as the toilet’s tank is refilling, do not panic. The most likely culprit is the ballcock valve (also known as a float valve). Luckily, this is an extremely simple and cheap fix.