Whether it is a soft whistling or an ear-piercing screech derives from
the opening of a metal ballcock valve. The ball, positioned at the end
of a metal armature, drops as soon as you flush the toilet, opening the
aperture on the other end of the armature. When the water rises, the aperture
If the gasket or the parts are old and worn, it may vibrate. The vibration
also occurs to the armature and ball, thus causing the high-pitched sound.
The vibration stops only when the aperture closes completely.
A high-pitched sound when your toilet refills could mean the following:
- The fill valve requires a new gasket
- You need a new fill valve
Replace the Fill Valve
Since replacing valves are inexpensive and easy to install, getting a new
fill valve is the best option. Most new valves are comprised of all-plastic
parts, which prevents them from whistling.
The following are the proper steps to replace the valve:
- Shut off the water and empty tank.
- Unscrew the old valve from the bottom of the tank.
- Adjust the new one to fill to the adequate level and screw it in.
If you are still experiencing problems with your toilet,
contact our licensed Bartlett plumber at
Smith’s Plumbing Services today.