Abstract: A flush toilet (10) is operated by a flushometer (14) which passes water to a water chamber (36). The chamber is sized to assure that the bottom (48) of the toilet bowl and waste outlet (22) are resealed against sewer gas backup. The chamber has outlets (30) and (32) that direct water to a jet outlet (20) and a rim rinse outlet (21) to flush the toilet and provides drainage of water after the flushometer is closed to reseal the toilet bowl (12).

Abstract: A water-conserving toilet is disclosed and includes a bowl for receiving waste and a waste outlet extending laterally from the bowl and defining a first, shallow trap arranged so that a relatively shallow body of liquid is normally retained in the bottom of the bowl for preventing gaseous flow through the trap. A flush system is provided and is arranged, when operated, to deliver a charge of flushing liquid into the bowl in a direction to cause said body of liquid to be discharged through said outlet. An enlarged chamber communicates with said bowl outlet for receiving waste from the bowl. An outlet extends outwardly from the chamber and is adapted for connection to a sewer inlet. The chamber outlet defines a second trap of substantial height capable of preventing reverse flow of sewer gas into the chamber in use.

Abstract: A water-conserving toilet is disclosed and includes a bowl for receiving waste and a waste outlet extending laterally from the bowl and defining a first, shallow trap arranged so that a relatively shallow body of liquid is normally retained in the bottom of the bowl for preventing gaseous flow through the trap. A flush system is provided and is arranged, when operated, to deliver a charge of flushing liquid into the bowl in a direction to cause said body of liquid to be discharged through said outlet. A waste holding tank communicates with said bowl outlet for receiving waste from the bowl and the holding tank has an outlet extending outwardly from the tank and adapted for connection to a sewer inlet. The holding tank outlet defines a second trap of substantial height capable of preventing reverse flow of sewer gas into the holding tank in use and the holding tank and second trap are arranged to contain a volume of liquid substantially in excess of the volume discharged from the bowl at each flush.