Abstract: A dual-phase flush urinal that maintains itself in a sufficiently sanitary condition with minimal water consumption. The urinal includes a piece of chinaware having a rear wall with a pair of sidewalls depending normally outward therefrom. A bottom extent of the sidewalls terminates in a curved bowl portion having a fluid well and a water drain therewithin. The sidewalls and rear wall together define a containment area in which an atmospheric vacuum breaker and valve means are disposed. The valve means is in electrical communication with a sensor that detects the presence of a user and has a first fluid discharge port in fluid communication with the bowl portion and a second fluid discharge port. Upon detection of the user, the sensor transmits a first signal to the valve means to initiate a first water exchange phase of the flush cycle. The first fluid discharge port provides water along an elongate channel to remove waste from the bowl portion.

Abstract: An adjustable valve to control the amount of water flowing through the refill water hose to the overflow tube and into the water closet bowl. The valve is a dual component device including a housing structure and a lever component. Both the housing structure and lever component have a trunk section of similar shape, but of different size. The trunk section of the lever component fits snugly within the trunk section of the housing structure. The lever component is able to rotate within the housing structure. The trunk sections in both the housing structure and the lever component include openings which provide a passageway for water to flow therethrough. The openings in the housing structure are spherically shaped and the openings in the lever component are pear-shaped. The housing structure includes a pair of tabs disposed 90.degree. from one another for limiting the rotation of the lever component such that the openings in both the housing structure and lever component are always aligned.