A look at the Fluidmaster dual flush valve. This does not show how to fit it. It's a good valve that conserves water and is easy to fit (if nothing goes wrong), should fit most toilet cisterns, and is easy to maintain. With hindsight I would probably buy the Fluidmaster dual flush flapper valve though. But this flush valve is fine. I have no plumbing skills.
Amazon USA search ' flush valve ' : http://goo.gl/6cohO3
Amazon UK search ' fluidmaster flush valve ' : http://goo.gl/F4IHeK
update Aug 2015 :
Flush force too powerful causing splashes
I am finding that the flush can be so strong that the water can splash my seat causing a bit of an occasional obvious unwanted mess. For that reason I have replaced it with another brand (Opella) which does not seem to cause this. I am not sure why it happens. Maybe I am an isolated case.
