Do i need to change washer in toilet cistern?

[richie51]

Hi, my toilet keeps filling with water even after flushing has stopped. It did this about 3 or 4 years ago, and when I checked there was a tiny hole in the washer in the ballcock. I changed the washer and the problem was solved. I've checked the washer this time, but it looks perfect. Can't see a hole. Do you think the washer needs changing again, or could it be another problem? Thanks.

 

[REDSAW]

another problem!
more likely the dumpvalve seal if its the round type. or overfilling/flowing perhaps?

 

[Stoney Ground]

Flush the toilet and hold valve closed, if it still fills up then it is the inlet valve diaphragm (washer) if it doesn't fill up then the flush valve is letting by.

 

[richie51]

Flush the toilet and hold valve closed, if it still fills up then it is the inlet valve diaphragm (washer) if it doesn't fill up then the flush valve is letting by.

Thanks for the replies. I think it must be the flush valve as the diaphragm washer looks OK. I think I'm out of my depth now though, so time to call a plumber. Hope it's not too costly!

 

[Stoney Ground]

Post a request in I'm looking for a Plumber section, you may get some response.