A toilet flap valve assembly includes a band that is comprised of a resiliently bendable material thereby facilitating the band to be formed into a closed loop that is positionable in a trap of a toilet bowl. A flap is movably attachable to the band when the band is formed into the closed loop. The flap is foraminous to pass liquid therethrough and the flap is normally positioned in a closed position having the flap closing the closed loop. The flap is only openable in a direction of flow in the trap to inhibit an animal from entering the toilet from a sewer line. The flap is urgeable into an open position in the direction of flow in the trap to facilitate solid waste to flow through the trap when the toilet is flushed.

A toilet flap valve assembly includes a band that is comprised of a resiliently bendable material thereby facilitating the band to be formed into a closed loop that is positionable in a trap of a toilet bowl. A flap is movably attachable to the band when the band is formed into the closed loop. The flap is foraminous to pass liquid therethrough and the flap is normally positioned in a closed position having the flap closing the closed loop. The flap is only openable in a direction of flow in the trap to inhibit an animal from entering the toilet from a sewer line. The flap is urgeable into an open position in the direction of flow in the trap to facilitate solid waste to flow through the trap when the toilet is flushed.

The invention relates to a method for removing a chemical substance from human excreta, such as faeces and urine, comprising the following steps of: providing a toilet for a person from whose excreta the chemical substance must be removed; releasably connecting a filtering device to the toilet, wherein the filtering device comprises at least one removable cartridge with a filter; transporting the excreta by means of a transport screw from the toilet toward the filter in the cartridge, wherein pressure is exerted on the excreta by means of a plunger; filtering the chemical substance out of the excreta in situ using the filtering device; periodically replacing the at least one cartridge; and processing the replaced cartridge. The invention also relates to a filtering device for application in this method, and a cartridge for use in such a filtering device.

A sump for a toilet includes a first end of the sump, defined by a first boundary, and a second end of the sump, defined by a second boundary. The sump includes a channel running from the first end of the sump to the second end of the sump defined by a sump surface. The first end of the sump is configured to receive liquid and the second end of the sump is configured to supply liquid. The sump has a sump can-cut diameter corresponding to a diameter of the channel at the first end of the sump, a sump side radius extending from a center of the channel to an inner surface of the channel, and a sump depth corresponding to a largest vertical distance within the channel. The sump may be drain cast using a single continuous pathway.

A sump for a toilet includes a first end of the sump, defined by a first boundary, and a second end of the sump, defined by a second boundary. The sump includes a channel running from the first end of the sump to the second end of the sump defined by a sump surface. The first end of the sump is configured to receive liquid and the second end of the sump is configured to supply liquid. The sump has a sump can-cut diameter corresponding to a diameter of the channel at the first end of the sump, a sump side radius extending from a center of the channel to an inner surface of the channel, and a sump depth corresponding to a largest vertical distance within the channel. The sump may be drain cast using a single continuous pathway.

A shield system for installation to a toilet bowl for temporarily covering an outlet port of the toilet bowl. The shield system includes a support assembly, a membrane, and a mounting assembly. The support assembly includes a base piece defining a central aperture sized to receive the outlet port. The membrane is connected to the base piece and extends across the central aperture. The mounting assembly is configured for securing the shield system to the toilet bowl in a region of the outlet port (e.g., to a base of the toilet bowl), and can include two threaded bolts. In an installed arrangement, the membrane is secured over the outlet port in liquid tight manner, serving to prevent discharge of contained water from the toilet bowl.

A toilet flap valve assembly includes a band that is comprised of a resiliently bendable material thereby facilitating the band to be formed into a closed loop that is positionable in a trap of a toilet bowl. A flap is movably attachable to the band when the band is formed into the closed loop. The flap is foraminous to pass liquid therethrough and the flap is normally positioned in a closed position having the flap closing the closed loop. The flap is only openable in a direction of flow in the trap to inhibit an animal from entering the toilet from a sewer line. The flap is urgeable into an open position in the direction of flow in the trap to facilitate solid waste to flow through the trap when the toilet is flushed.

A toilet flap valve assembly includes a band that is comprised of a resiliently bendable material thereby facilitating the band to be formed into a closed loop that is positionable in a trap of a toilet bowl. A flap is movably attachable to the band when the band is formed into the closed loop. The flap is foraminous to pass liquid therethrough and the flap is normally positioned in a closed position having the flap closing the closed loop. The flap is only openable in a direction of flow in the trap to inhibit an animal from entering the toilet from a sewer line. The flap is urgeable into an open position in the direction of flow in the trap to facilitate solid waste to flow through the trap when the toilet is flushed.

A method of controlling the discharge of waste water from a toilet includes the installation of a valve in the discharge outlet of the toilet, the valve including a valve body and a spring-loaded valve closure member that is movable relative to the valve body into an open position during flushing of the toilet against the action of its spring-loading and which is returned to the closed position by the action of its spring-loading on completion of the flushing operation.

A discharge valve apparatus of the present invention includes: a discharge portion main body member attached to discharge opening, forming the inside of discharge flow path for guiding flush water from an inflow opening formed at one end thereof to an outflow opening formed at the other end thereof; a valve body for opening and closing the inflow opening of the discharge portion main body member; and an affixing portion, formed to project into the discharge flow path of a discharge portion main body member, for affixing the discharge portion main body member to a reservoir tank; wherein the inside surface of side wall portion in the discharge portion main body member at the same height as this affixing portion forms a curved portion, which curves outward so as to expand the cross-sectional area of the flow path.