I have a Mira Excel shower (uses cartridge 903.33) which leaks/passes water every now and then (i.e. spurts from the shower head randomly for half a second or so). This seems to happen most often after the toilet cistern stops filling but there is also evidence of it having happened during the day when people have been out and no-one has used anything.
I thought it was the cartridge (and I live in a hard water area) so I replaced this and the o-rings and cleaned out all the limescale from the housing, but it's still happening.
What else do I need to do?
I thought it was the cartridge (and I live in a hard water area) so I replaced this and the o-rings and cleaned out all the limescale from the housing, but it's still happening.
What else do I need to do?
