A hidden water tank includes a water tank body, including a water inlet assembly and a pneumatic drainage assembly; and a driving panel detachably connected to the water tank body. The driving panel includes one of a pneumatic driving panel, a mechanical driving panel, or an electric driving panel. The mechanical driving panel and the pneumatic drainage assembly are connected through a first driving conversion module configured to convert a mechanical driving force generated by the mechanical driving panel into a first air pressure-driving force. The electric driving panel and the pneumatic drainage assembly are connected through a second driving conversion module configured to convert an electrical signal generated by the electric driving panel into a second air pressure-driving force.

A hidden water tank includes a water tank body, including a water inlet assembly and a pneumatic drainage assembly; and a driving panel detachably connected to the water tank body. The driving panel includes one of a pneumatic driving panel, a mechanical driving panel, or an electric driving panel. The mechanical driving panel and the pneumatic drainage assembly are connected through a first driving conversion module configured to convert a mechanical driving force generated by the mechanical driving panel into a first air pressure-driving force. The electric driving panel and the pneumatic drainage assembly are connected through a second driving conversion module configured to convert an electrical signal generated by the electric driving panel into a second air pressure-driving force.

An air drive system for a toilet includes a compression cylinder including an air space, a fluid space, a base orifice adjoining the fluid space, and an outlet orifice adjoining the air space, and an air drive passage configured to carry pressurized air to the toilet. The flow of water increases the fluid space of the compression cylinder or increases an air pressure associated with the air space of the compression cylinder.

An air drive system for a toilet includes a compression cylinder including an air space, a fluid space, a base orifice adjoining the fluid space, and an outlet orifice adjoining the air space, and an air drive passage configured to carry pressurized air to the toilet. The flow of water increases the fluid space of the compression cylinder or increases an air pressure associated with the air space of the compression cylinder.

An air drive system for a toilet includes a compression cylinder including an air space, a fluid space, a base orifice adjoining the fluid space, and an outlet orifice adjoining the air space, and an air drive passage configured to carry pressurized air to the toilet. The flow of water increases the fluid space of the compression cylinder or increases an air pressure associated with the air space of the compression cylinder.

An air drive system for a toilet includes a compression cylinder including an air space, a fluid space, a base orifice adjoining the fluid space, and an outlet orifice adjoining the air space, and an air drive passage configured to carry pressurized air to the toilet. The flow of water increases the fluid space of the compression cylinder or increases an air pressure associated with the air space of the compression cylinder.

A hydraulic propulsion system for disposing of human waste. The system includes a toilet having a bowl, and a base below the bowl. The base is secured to the chassis of a vehicle, or to a remote sanitation facility. The system also comprises a hydraulic flushing mechanism associated with the toilet, and a fluid receiving chamber that receives water and human waste when the flushing mechanism is actuated. The human waste is directed through a sewage ejection pipe and into a black-water tank or a municipal sewer system. The human waste propulsion system further comprises a pneumatic line. The pneumatic line is in fluid communication with the fluid receiving chamber proximate the bowl. The pneumatic line receives compressed air which is delivered when the hydraulic flushing mechanism is actuated. Additionally, the human waste propulsion system has a controller. The controller is configured to close a flush valve and then direct the compressed air into the pneumatic line when the flushing mechanism is actuated, thereby moving human waste through the fluid receiving chamber.

A hydraulic propulsion system for disposing of human waste. The system includes a toilet having a bowl, and a base below the bowl. The base is secured to the chassis of a vehicle, or to a remote sanitation facility. The system also comprises a hydraulic flushing mechanism associated with the toilet, and a fluid receiving chamber that receives water and human waste when the flushing mechanism is actuated. The human waste is directed through a sewage ejection pipe and into a black-water tank or a municipal sewer system. The human waste propulsion system further comprises a pneumatic line. The pneumatic line is in fluid communication with the fluid receiving chamber proximate the bowl. The pneumatic line receives compressed air which is delivered when the hydraulic flushing mechanism is actuated. Additionally, the human waste propulsion system has a controller. The controller is configured to close a flush valve and then direct the compressed air into the pneumatic line when the flushing mechanism is actuated, thereby moving human waste through the fluid receiving chamber.

A tank for a pressure-assist toilet flush system includes a base having an outlet for discharging water from the tank and a cover connected to the upper end of the base at a tongue-and-groove joint. The base has a pair of first sidewalls extending downward from the upper end of the base along a length of the base, a pair of second sidewalls extending between the first sidewalls and downward from the upper end of the base, and a bottom wall connected to the first sidewalls and the second sidewalls, with the outlet defined in the bottom wall. The base also includes first and second cross-ribs connected to the first sidewalls and each having a bridge portion extending between the first sidewalls on opposite sides of the outlet, the first and second cross-ribs each having an opening between a bottom edge of the bridge portion and the bottom wall.

A tank for a pressure-assist toilet flush system includes a base having an outlet for discharging water from the tank and a cover connected to the upper end of the base at a tongue-and-groove joint. The base has a pair of first sidewalls extending downward from the upper end of the base along a length of the base, a pair of second sidewalls extending between the first sidewalls and downward from the upper end of the base, and a bottom wall connected to the first sidewalls and the second sidewalls, with the outlet defined in the bottom wall. The base also includes first and second cross-ribs connected to the first sidewalls and each having a bridge portion extending between the first sidewalls on opposite sides of the outlet, the first and second cross-ribs each having an opening between a bottom edge of the bridge portion and the bottom wall.