While you wait for answers, we may have found some information which could help you.
Click here for Flush Toilet Checkedhow do I change the bellows in the push button unit for the grohe cistern?
Short burst of water entering cistern ?
The push button on my Grohe Adagio stopped flushing ?
Grohe seals 14.11.30 4 DAL?
Grohe 42181 toilet filler valve leaking?
Have I been charged way to much for having a loo mended?