I discovered a wet floor in my granny flay bathroom the other day, and quickly found that the toilet cistern was overflowing. The overflow outlet isn't plumbed to anything, and it's not one of those toilet where the overflow goes down into the bowl. I rent, and getting this sorted out is not by the landlord is sadly not a realistic option.
There's a small button on the inlet. As the float rises the button is gradually depressed, eventually meant to cut off the flow coming into the cistern completely. It doesn't. No matter how tightly I adjust the screw to set the floater maximum height, the inlet still drips. I have to flush the toilet about 3 times a day to prevent overflow. This being in the granny flat means that toilet isn't used daily, so this is a chore.
I'm not clear on the exact terminology here, so here's a labelled picture for clarification
I'm hoping there is a quick easy fix here that I can do myself, without involving my landlord, which is liable to take weeks/months.