I have a Schwab inwall toilet. Water keeps flowing heavily after flushing.
I took everything out of the wall and found that the reason is because the ?hammer doesn't come back up again, therefore the ?float never thinks that it is full.
The reason it doesn't come up is because the plastic is 'squeaking' where the red circle is in my image.
What I really want to know is whether I have to replace that bit or if there is a way I can loosen it a bit. And if I do have to replace, then which part and what is it called.