I believe from what info I have gathered it is the refill valve, the top part which is plastic and seals the inlet is slightly cracked. Would I be able to just get a new top part to replace this or perhaps duck tape or some form of tape adhesive to seal the crack???
Hope someone can help, my usual plumbers gone off and got married and can't get a plumber in Thirsk for love nor money!! My toilet is constanttly bringing water into the cistern therefore it's leaking down the overflow. I can see from where the water comes in it has a small crack in the flap so...