Noisy toilet

[diana79]

When I flush the toilet in the bathroom a loud humming noise and vibrations from under the floor occur. If I run the taps immediately after flushing, the noise continues but then stops when the tap is turned off or after a few seconds.

Does anyone know what could be causing this problem and how it can be fixed?

 

[chr15]

Sounds like water hammer and vibration to me,probably solve it by clipping and securing the cold water pipe properly but it will mean going under the floor.

 

[JohnD]

Agree - loose pipes vibrating, need clipping or padding.

If taking up the floor is too discouraging, you could start by fitting a quiet equilibrium valve such as a Torbeck or a Fluidmaster will help. It sounds like you have high pressure (mains, not tank) water supply to the cistern, so if nothing else be sure the valve has a high-pressure one or has the correct reducer.

 

[diana79]

Thank you for those suggestions - will give them a try