Breesey and giblets,
Yesterday I replaced the whole valve assembly with an Opella Torbeck. QED and a lot quieter. Job sorted! I am a happy bunny! Many thanks.
Many thanks. That explains what the red disc is for. No, I haven't changed the white nozzle or fibre washer behind it. Didn't know one was there, but if I can get the replacement parts, I will do. Failing that, I'll replace the whole fitting. It won't cost the earth.
The overflow in the toilet cistern is constantly dripping to the outside. The mechanism within the cistern is plastic. I have replaced the rubber diaphragm and 'O' ring within the plastic cylinder, adjusted the plastic stop, but after a while the water seeps in and eventually enters the...