We've had a small leak of water into the toilet bowl for many months now. Pretty sure the toilet is a caroma stylus.
I've confirmed that the leak is due to the flushing mechanism by switching it to another toilet in the house (same type).
Pictures are attached; I just can't figure out how to remove the bottom rubber washer (to replace it) and some sites suggest that I will need to replace the entire mechanism for this model which is a reasonable cost.
So am I being stupid and the rubber seal can be removed/replaced or do I need to buy a whole new flush mechanism?





