Faulty Cistern

[Doug99]

Hi All
My cistern is overflowing and continues to stream slowly into the bowl for a couple of minutes, before a HISSSSSSS and then shuts off.
Is this just an adjustment to fix or new valve?
Unfortunately the cistern li is not easily accessible as it is concealed under a bathroom worktop.
Cheers
Doug

 

[jj4091]

Etither adjustable or a new seal. You will have to look somehow or other as there are several different makes. Take a picture of the fill valve while you are there and post it up if you need more help.

 

[Doug99]

All sorted - Managed to access the cistern and clean the components which were covered in a black gunge(?).
Not surprising as it has been nearly 10yrs since its installation.
Fortunately the worktop lifted cleanly.
Thanks - JJ4091