The dispensing device is comprised of a hollow body, divided into a pressurisation chamber and a dispensing chamber using conversion media of the pressure variations into volume variations of the dispensing chamber designed as an elastomer, which has a cavity constituting the actual dispensing chamber, whilst the pressurisation chamber is connected to an inlet tap which has a restriction and ends with an inlet valve and the dispensing chamber to an intermediate section of a secondary circuit which ends at each end in check valves which extend the secondary circuit with a downstream section and an upstream section, the latter being connected to a tank with the product to be dispensed. The closing of the inlet valve leads to a reduction in the volume of the dispensing chamber due to the compression of the elastomer, ejecting the fluid to be dispensed.

A system for automatic dispensing of a liquid into a toilet bowl includes a dispenser and a liquid refill cartridge. The dispenser mechanically interfaces with the toilet tank and connects with the water supply therein. When the toilet is flushed, fresh water flows from the float valve into the dispenser, and then back into the toilet bowl via the overfill tube. Within the dispenser, the water flow is constricted through an integral venturi before exiting. The venturi yields a pressure differential inside the dispenser that pulls liquid from the refill cartridge and into the outflow of water. A specified volume of liquid is drawn from the liquid refill cartridge and dispersed into the toilet bowl after every flush, without the use of electronics. The liquid may be an odor blocking liquid, a scented liquid, a colorant, enzymes, or a cleaning solution, among others.

A device and method for reducing odor and splash in a toilet is provided. The device includes a plurality of dissolvable layers. An outer layer is configured to retain the inner layer in a compressed and compact shape prior to being saturated. The inner layer is surrounded at least partially by the outer layer. When saturated, the inner layer is configured to distribute across the surface of the water. The inner layer creates a barrier across the surface of the water and selectively releases an aromatic scent into the air. The device may be inserted into the toilet bowl at any time. The dissolvability rates of the various layers may be different from each other. Such rates may also be designed to be of different periods of time to suit particular needs.

A system for dispensing water treatment compositions into a pool, spa, or other body of water is disclosed, which system provides a visible cue that the water treatment is properly dispersing and also provides a visible cue when the desired amount of water treatment has been dispensed. The system comprises a dispenser and the water treatment composition contained within the body of the dispenser, which dispenser and which system provides a readily visual cue that when the water treatment dose has been fully, or in some cases mostly or partially dispersed. For example, the dispenser sinks when fully dosed and resurfaces when empty, and in particular embodiments the water treatment generates visible gas bubbles and/or a color stream as the treatment dissolves.

A toilet that includes a tank configured to hold water from a water supply; a reservoir fluidly connected to the tank and configured to hold a cleaning compound comprising a chemical compound and water from the water supply; and an actuator configured to control a flush cycle of the toilet upon a first activation, the actuator including at least one nozzle fluidly connected to the reservoir and configured to discharge an amount of the cleaning compound external to the tank upon at least one of the first activation or a second activation.

A toilet that includes a tank configured to hold water from a water supply; a reservoir fluidly connected to the tank and configured to hold a cleaning compound comprising a chemical compound and water from the water supply; and an actuator configured to control a flush cycle of the toilet upon a first activation, the actuator including at least one nozzle fluidly connected to the reservoir and configured to discharge an amount of the cleaning compound external to the tank upon at least one of the first activation or a second activation.

A toilet that includes a tank configured to hold water from a water supply; a reservoir fluidly connected to the tank and configured to hold a cleaning compound comprising a chemical compound and water from the water supply; and an actuator configured to control a flush cycle of the toilet upon a first activation, the actuator including at least one nozzle fluidly connected to the reservoir and configured to discharge an amount of the cleaning compound external to the tank upon at least one of the first activation or a second activation.

A toilet that includes a tank configured to hold water from a water supply; a reservoir fluidly connected to the tank and configured to hold a cleaning compound comprising a chemical compound and water from the water supply; and an actuator configured to control a flush cycle of the toilet upon a first activation, the actuator including at least one nozzle fluidly connected to the reservoir and configured to discharge an amount of the cleaning compound external to the tank upon at least one of the first activation or a second activation.

A self-cleaning toilet has: a toilet, a cleaning device, a solenoid valve and a blocking member. The toilet has a sitting toilet seat and a water tank. The sitting toilet seat is formed with a urinal, and one end of the urinal has an enlarged opening to form a seat, and the urinal tapers from the seat to the other end to form a drain elbow. The water tank is connected to the toilet with an outlet pipe, and the water tank is connected with an input pipe, a cleaning device is set in the toilet with a controller, and the controller is connected with a plurality of the ultrasonic transducers and a full water level sensor, The ultrasonic transducers are fixed on the inner wall of the urinal. The solenoid valve is connected to the input pipe, and a blocking member is connected to the drain elbow.

The system may comprise a holding device having a first portion and a second portion; the holding device configured to receive fill water; the first portion of the holding device configured to retain a cleaning substance; the second portion of the holding device configured to allow the fill water to flow into an overflow pipe; a second leg having a first end interfacing with the holding device; the second leg having a second end configured to be reciprocally received into the overflow pipe to allow the fill water to flow into the overflow pipe; a first leg having a first end interfacing with the holding device; and the first leg having a second end configured to abut a bottom of an inside of a tank of a toilet.