Abstract: A pressurized water closet flushing system for flushing a toilet includes a water vessel having at least one opening for receiving water. A fill tube and a discharge tube extending into the vessel are secured to the vessel. A modular assembly cap including an intake and an actuator covers the opening. The fill tube remains secured to the vessel when the assembly cap is removed from the vessel.

Abstract: A pressurized water closet operating system comprises an accumulator vessel for storing water and air under pressure. A flush valve controls the discharge of water from the vessel and comprises a cylinder having a lower end in fluid communication with the outlet of said vessel, a piston defining upper and lower chambers therein, an orifice in the piston, an aperture in the cylinder providing fluid communication between the interior of the accumulator vessel and the lower chamber in the cylinder, a valve on the piston normally closing the lower end of the cylinder so as to close the water outlet and openable upon upward movement of the piston to permit the discharge of water, and a normally closed flush valve actuator openable to effect fluid communication between ambient air pressure and the upper chamber in the cylinder whereby a fluid pressure differential across said piston effects upward movement thereof and opening of the valve.

Abstract: A removable volume control apparatus 140 for a pressurized water closet 10 comprises a generally right circular cylindrical 150 insert open at both ends having a plurality of slots 154 in the bottom edge 152 thereof. A flange 142 depending from an annular valve seat 108 of the water closet 10 has a plurality of tabs 144 depending therefrom that engage the slots 154 of the insert 150 whereby the insert 150 is disposed circumferentially around a flush valve 110 of the water closet, thereby preventing the flow of a portion of water in the system into the bowl.

Abstract: A pressurized water closet operating system comprises a water vessel, an external manifold mounted directly on said vessel, and an internally mounted flush valve assembly. The manifold comprises a water pressure regulator, an air induction system, and a manually operable flush valve actuator. The manually operable flush valve actuator controls the discharge of water under pressure from the water vessel into the toilet bowl.

Abstract: A pressurized water closet operating system comprises an accumulator vessel having a flush valve assembly mounted internally thereof both of which are connected at all times to a source of water under pressure. A remote control valve hydraulically conditions the flush valve for the discharge of water under pressure from the accumulator vessel.

Abstract: A pressurized water closet operating system comprises a water vessel, an external manifold mounted directly on said vessel, and an internally mounted flush valve assembly. The manifold comprises a water pressure regulator, an air induction system, and a manually operable flush valve actuator. The manually operable flush valve actuator controls the discharge of water under pressure from the water vessel into the toilet bowl.