How do you replace a GROHE single flush valve (part no. 43544)?

1 Lift off Cistern lid 2 Remove the bridge carrying the end of the tube from the flush button and the bellows below it. There are small catches at front and back 3 take hold of the tube and lift, the whole of the rest of the works comes out.
4 The lowest part has two washers and is held to the upper by one of them it can be removed from the upper by pulling it. then examine the two washers. There may be "bubbles" on either or both. These are the cause of the loss of seal and can be removed by pricking them with a pin but DO NOT pierce the washer.
5 Reassemble

BrianT
May 2010

I would never try to repair grohe - best to replace with some thing that works for a while

euge the plumber
April 2010