 
                We may have found other answers which could help you.
Click here for Repair Cistern Pipe 
                Grohe 42181 toilet filler valve leaking?
 
                How do I remove the fitting for the flush on my hidden cistern toilet?
 
                Replacement of bellows in Grohe air button?
 
                GroheEAU2 Dual flush cistern. The large flush button keeps breaking off?
 
                grohe toilet cistern leasks ?
 
                Short burst of water entering cistern ?