I have a dual button flush Ideal Standard cistern and the water doesn't shut off when the float reached the top of its travel. Even lifting it manually the water still comes in. How do I remove the complete assembly?

Alan, June 2009

If it's the float ball and arm type you don't have to replace. Turn off the water to the cistern Remove the float arm, Usually held by a pin, remove the large knurled nut and plunger on the valve assembly the large washer is what that plunger pushes against to shut water off and its likely the washer has 'holed' replace this washer re-assemble the arm turn on water job done. If it over fills re-adjust the rod that pushes against the plunger.

Bob, June 2009