Sorry, don't know the correct name for it but, there is a small inner cup that sits in the drain in the floor of my wet room.
I clean this out weekly and refill with clean water (and disinfectant).
Today I noticed that the cup has a crack in it.
Does this matter given that it is designed to overflow into the drain anyway, or do I need a new one for some reason I have no idea about?
If I do need a new one, where would I get one from?