While you wait for answers, we may have found some information which could help you.
Click here for Inlet Valve CisternHave I been charged way to much for having a loo mended?
grohe toilet cistern leasks ?
how do I change the bellows in the push button unit for the grohe cistern?
Slow fill of toilet cistern?
Replacement of bellows in Grohe air button?
Grohe seals 14.11.30 4 DAL?