A ceramic toilet pan having a raised rear portion to which a hinge tube may be accurately located and fixed in position for example by adhesive using a jig despite variations in pan body size due to ceramic firing, a water pump and air pump being provided for flushing the toilet pan when a seat and lid are in a closed position. The seat and lid are rotationally mounted to the pan by a horizontal hinge pin located in the hinge tube and a latch member is provided for latching the lid and seat closed. A cistern is also provided having an overflow weir.

A water reuse device for reusing waste water discharged from a bathroom or a kitchen as toilet flushing water, including: a water collecting tank (10); a storage tank (20) receiving the used water stored in the water collecting tank (10) and having a water level sensor (21); a toilet water tank (32) located at a lower level than the storage tank (20) and having a first water level sensor (36) and a second water level sensor (35); a first pipe (22) connecting the storage tank (20) and the toilet water tank (32); a first solenoid valve (40) installed in the first pipe (22); a second pump (38) installed in the toilet water tank (32); a backflow prevention valve (34) provided between the second pipe (33-2) and the third pipe (33-3); and a water shutoff valve (41) provided between a water supply pipe (31) and the water pressure control valve (41-1).

A water reuse device for reusing waste water discharged from a bathroom or a kitchen as toilet flushing water, including: a water collecting tank (10); a storage tank (20) receiving the used water stored in the water collecting tank (10) and having a water level sensor (21); a toilet water tank (32) located at a lower level than the storage tank (20) and having a first water level sensor (36) and a second water level sensor (35); a first pipe (22) connecting the storage tank (20) and the toilet water tank (32); a first solenoid valve (40) installed in the first pipe (22); a second pump (38) installed in the toilet water tank (32); a backflow prevention valve (34) provided between the second pipe (33-2) and the third pipe (33-3); and a water shutoff valve (41) provided between a water supply pipe (31) and the water pressure control valve (41-1).

A black tank arrangement is provided having a selectively operable macerator for recirculating fluid adjacent the black tank outlet back toward the black tank inlet, so as to flush or spray waste from that inlet toward the outlet. Selecting the fluid transfer components to be mountable adjacent the end face of the black tank near the black tank outlet allows the invention to be retrofit into previously installed black tanks in vehicles. Operation of the macerator can be manual, via a remote switch held down by the user for a given time period, and/or automatic, in sequence with toilet operation.

A black tank arrangement is provided having a selectively operable macerator for recirculating fluid adjacent the black tank outlet back toward the black tank inlet, so as to flush or spray waste from that inlet toward the outlet. Selecting the fluid transfer components to be mountable adjacent the end face of the black tank near the black tank outlet allows the invention to be retrofit into previously installed black tanks in vehicles. Operation of the macerator can be manual, via a remote switch held down by the user for a given time period, and/or automatic, in sequence with toilet operation.

A flush toilet includes a toilet main body and a tank device. The tank device includes a storage tank, and a water supply unit configured to supply flush water to the storage tank. The storage tank includes a first upper surface including a water passage port through which the flush water supplied from the water supply unit flows into the storage tank, a second upper surface that is lower than the first upper surface, and a third upper surface that is provided between the first upper surface and the second upper surface and that is lower than the second upper surface. The storage tank further includes an air vent unit that is provided at the second upper surface and that is configured to purge air from the storage tank.

A flushing toilet has a manually operable main discharge valve with a main flushing outlet connected to a flushing outlet below the normal water level in a toilet bowl water trap. The flushing outlet is directed toward the water trap. A generally tangential swirling outlet in an upper region of the toilet bowl is controlled by a separate valve and directed generally horizontally to cause water leaving it to follow a swirling path on the inside of the toilet bowl in a cleansing flush. The water trap has a passage that follows a path of generally squat U-shape with an inlet end opening into the lower end of the toilet bowl, a central region that is lowermost and a water trap outlet the lowermost part of which defines a depth to the water trap. The cross-sectional shape of the passage has a longer vertical axis than its horizontal axis.

The front end of a pipe is placed in the air flow zone formed by a compressed air tube, and the back end of the pipe connects to the urine source. When the compressed air passes through the front end of the pipe, a spray is formed that can flush fecal waste. The embodiments in this application also describes an extension pipe that can connect between back end of the pipe and the urine source, which makes flushing of fecal waste easier in straight toilets. This application's embodiments also describes a nozzle for the pipe and a nozzle for the compressed air tube.

The front end of a pipe is placed in the air flow zone formed by a compressed air tube, and the back end of the pipe connects to the urine source. When the compressed air passes through the front end of the pipe, a spray is formed that can flush fecal waste. The embodiments in this application also describes an extension pipe that can connect between back end of the pipe and the urine source, which makes flushing of fecal waste easier in straight toilets. This application's embodiments also describes a nozzle for the pipe and a nozzle for the compressed air tube.

A waste disposal apparatus for an aircraft comprising a basin for receiving liquid and/or solid pollutants, comprising a lid for closing off the basin, comprising a feed arrangement for supplying an air-water mixture, wherein the feed arrangement has an air-water mixing device for providing the air-water mixture and a distributing device for distributing the air-water mixture in the basin, and comprising a lead-off arrangement for leading off the effluent formed from the air-water mixture containing the pollutants, wherein the lead-off arrangement opens out into an outlet from the basin and the lead-off arrangement can be subjected to an underpressure, so that the air-water mixture, when the lid is closed, is sucked into the basin via the distributing device is proposed, wherein the air-water mixing device has an air duct and a nozzle for the dispensing of water and the water can be subjected to an overpressure and wherein the distributing device and the basin are jointly designed such that the water-air mixture is guided in a cyclonic and/or helical path from the distributing device into the outlet.