A handle assembly for providing dual flush functionality to a flush valve. The handle assembly comprising a handle and a plunger engagable with each other. The plunger axially slidable in a bush dispo
2.The system according to claim 1 wherein said vessel is sized for containment within a toilet tank and said control valve is disposed in fluid communication with said dual flush valve through flexible conduits to enable placement of said control valve anywhere on said toilet tank. ...