While you wait for answers, we may have found some information which could help you.
Click here for Water Plumber ReplacedThe push button on my Grohe Adagio stopped flushing ?
how to take unit apart?
Grohe seals 14.11.30 4 DAL?
grohe toilet cistern leasks ?
Replacement of bellows in Grohe air button?
Grohe push button toilet attached to saniflow ?