not too sure what your one looks like , but if you look at the floating valve, you should see a long plastic screw on the side of it, it has a small arm on it thats on the adjuster for knocking off the water, as it rises up the screw, if you look it you will see it comming back up to knock the water off, your one just needs to be adjusted up the long screw, so it knocks the water off before it hits the overflow, do this by turning the screw, and moveing the bar upwards, loook at it and you will see how it works,
h, November 2011
