Push Button Toilet hissing?

Michael,

Since you describe a hissing noise, that sounds like it coming from the mains pressure side. I think the problem is that the inlet valve is not closing fully. Doesn't sound like an outlet valve problem.

I just fixed mine, there was a small bit of grit under the inlet valve. See another question and answer on this website for some great instructions on how to dismantle it.

Richard (Surrey)
October 2007

It's probably the valve at the bottom leaking and letting water drain away. The cistern is then trying to fill back up all the time. I have smae problem with a dual flush cistern fitted 2 years ago. Only way to fix it is to replace part i think.

Ralph
October 2007