While you wait for answers, we may have found some information which could help you.
Click here for Cistern Flushing Water Toilethow to take unit apart?
Grohe push button toilet attached to saniflow ?
The push button on my Grohe Adagio stopped flushing ?
grohe toilet cistern leasks ?
Slow fill of toilet cistern?
Have I been charged way to much for having a loo mended?