An outlet aperture arrangement (100) includes a flow promotion device (10) which, in use, is located at an outlet aperture (12) defined by a liquid container (14), for example, a toilet cistern. The device (10) includes a divider arrangement (16). The divider arrangement (16) includes one or more divider members (18). In use, the divider arrangement (16) is located at or in an entrance (20) to the outlet aperture (12), so that the or each divider member (18) divides the entrance (20) into a plurality of outlet entrance parts (22).

A plumbing clog removal apparatus that includes a vacuum chamber having an inlet, an outlet, and a compressor port. The clog removal apparatus also includes an inlet seal disposed at the vacuum chamber inlet. The vacuum chamber inlet seal is movably coupled to the vacuum chamber inlet and is movable between an open position and a closed position. The plumbing clog removal apparatus also includes, an outlet seal disposed at the vacuum chamber outlet. The outlet seal is movably coupled to the vacuum chamber outlet and is movable between an open position and a closed position. The vacuum chamber also includes an air compressor fluidically connected to the vacuum chamber compressor port. The compressor is configured to remove air from the compressor chamber and form a low pressure condition inside the vacuum chamber.

A plumbing clog removal apparatus that includes a vacuum chamber having an inlet, an outlet, and a compressor port. The clog removal apparatus also includes an inlet seal disposed at the vacuum chamber inlet. The vacuum chamber inlet seal is movably coupled to the vacuum chamber inlet and is movable between an open position and a closed position. The plumbing clog removal apparatus also includes, an outlet seal disposed at the vacuum chamber outlet. The outlet seal is movably coupled to the vacuum chamber outlet and is movable between an open position and a closed position. The vacuum chamber also includes an air compressor fluidically connected to the vacuum chamber compressor port. The compressor is configured to remove air from the compressor chamber and form a low pressure condition inside the vacuum chamber.

A timed pressure equalization member for use in a siphonic toilet to reduce water loss at the end of a flush cycle is disclosed. The equalization member functions to equalize the pressure in a pressurized chamber after a set period of time and consequently alleviates negative pressure within a pressurized trapway system at or near the end of a flushing cycle via a conduit, to help break the siphon at the end of the flush cycle, thereby reducing the amount of water drained from the water bowl/spot while the bowl is being refilled. At a resting state, the equalization member in the pressurized chamber is partially filled with water. The equalization member empties of water after a set period of time during a flush cycle and allows atmospheric air to enter the pressurized chamber (in fluid communication with the pressurized trapway) at or near the end of the flush cycle.

A timed pressure equalization member for use in a siphonic toilet to reduce water loss at the end of a flush cycle is disclosed. The equalization member functions to equalize the pressure in a pressurized chamber after a set period of time and consequently alleviates negative pressure within a pressurized trapway system at or near the end of a flushing cycle via a conduit, to help break the siphon at the end of the flush cycle, thereby reducing the amount of water drained from the water bowl/spot while the bowl is being refilled. At a resting state, the equalization member in the pressurized chamber is partially filled with water. The equalization member empties of water after a set period of time during a flush cycle and allows atmospheric air to enter the pressurized chamber (in fluid communication with the pressurized trapway) at or near the end of the flush cycle.

A plumbing clog removal apparatus that includes a vacuum chamber having an inlet, an outlet, and a compressor port. The clog removal apparatus also includes an inlet seal disposed at the vacuum chamber inlet. The vacuum chamber inlet seal is movably coupled to the vacuum chamber inlet and is movable between an open position and a closed position. The plumbing clog removal apparatus also includes, an outlet seal disposed at the vacuum chamber outlet. The outlet seal is movably coupled to the vacuum chamber outlet and is movable between an open position and a closed position. The vacuum chamber also includes an air compressor fluidically connected to the vacuum chamber compressor port. The compressor is configured to remove air from the compressor chamber and form a low pressure condition inside the vacuum chamber.

A plumbing clog removal apparatus that includes a vacuum chamber having an inlet, an outlet, and a compressor port. The clog removal apparatus also includes an inlet seal disposed at the vacuum chamber inlet. The vacuum chamber inlet seal is movably coupled to the vacuum chamber inlet and is movable between an open position and a closed position. The plumbing clog removal apparatus also includes, an outlet seal disposed at the vacuum chamber outlet. The outlet seal is movably coupled to the vacuum chamber outlet and is movable between an open position and a closed position. The vacuum chamber also includes an air compressor fluidically connected to the vacuum chamber compressor port. The compressor is configured to remove air from the compressor chamber and form a low pressure condition inside the vacuum chamber.

The present invention discloses a hydraulic energy storage mechanism, including a cylinder block, a cylinder body, a piston, a support, and a latch bolt component. In the present invention, a cylinder body, a piston, and a support structure being provided with a power slide block is used, and the tap water pressure is applied to push the piston to compress a spring and converted into elastic potential energy; the power slide block is driven by releasing the elastic potential energy to operate a suction drainage device of a water closet. The present invention has advantages of a small volume, large acting force, a simple structure, and reliable working, and effectively improves sewage drainage efficiency of the water closet.

The present invention discloses a hydraulic energy storage mechanism, including a cylinder block, a cylinder body, a piston, a support, and a latch bolt component. In the present invention, a cylinder body, a piston, and a support structure being provided with a power slide block is used, and the tap water pressure is applied to push the piston to compress a spring and converted into elastic potential energy; the power slide block is driven by releasing the elastic potential energy to operate a suction drainage device of a water closet. The present invention has advantages of a small volume, large acting force, a simple structure, and reliable working, and effectively improves sewage drainage efficiency of the water closet.

A volume controllable toilet flush system, comprising: a cistern configured to hold and retain a fluid; a vertically moveable siphon assembly comprising a siphon portion, a pipe and at least one resilient element attached to the pipe; a toilet bowl shaped to retain and hold waste; an actuator operatively connected to the pipe by a stud attached to the pipe and configured to provide vertical movement to the siphon assembly, wherein movement of the siphon assembly by the actuator stores or releases energy in the at least one resilient element and, wherein downward vertical movement of the siphon assembly puts the toilet bowl in fluid communication with the cistern by creating a siphoning action between the siphon portion and the fluid in the cistern and wherein subsequent upward vertical movement of the siphon assembly terminates the siphoning action to stop fluid flow from the cistern to the toilet bowl.