Abstract: A water conserving flush valve for use in a toilet tank is described. This flush valve is comprised of a valve, pivoting about an overflow tube contained in the tank, for directing water from the tank in order to produce a flush; means, responsive to rotational movement of a flush handle in a first direction for opening the valve in order to initiate a flush; and means, situated about the overflow tube and responsive to rotational movement of the flush handle in a second direction occurring at any time during the flush for forcing the valve to pivotally rotate to a closed position in order to pre-maturely close the valve, thereby limiting the amount of water consumed during the flush and, in turn, conserving water.