A noisy toilet can occur as the result of several things: loose pipes, irregular water flow or suboptimal float placement. All of these problems can be rectified quickly by making only a few minor adjustments by hand, but adhesive foam tape and a screwdriver may come in handy.Continue Reading
Check all pipes, connections and clamps around the toilet. A visual once-over may not be enough; tighten everything thoroughly with a screwdriver.
If the problem is a continuous water flushing noise, you can try fiddling with the water valve. Start by turning it all the way on and flushing again. If the problem persists, experiment with different settings.
Take the lid off the tank and find the float. If you have a ball float, turn the screw counterclockwise until the water stops and leave the screw in that position. If you have a cylinder float, press the adjustment clip on the side and lower the float until the water stops running.
Use adhesive foam tape on the edges of the tank and lid. While this does not directly address whatever is causing the noise, it may help to temporarily give you some peace and quiet by blocking out the sound.