A water reuse device for reusing waste water discharged from a bathroom or a kitchen as toilet flushing water, including: a water collecting tank (10); a storage tank (20) receiving the used water stored in the water collecting tank (10) and having a water level sensor (21); a toilet water tank (32) located at a lower level than the storage tank (20) and having a first water level sensor (36) and a second water level sensor (35); a first pipe (22) connecting the storage tank (20) and the toilet water tank (32); a first solenoid valve (40) installed in the first pipe (22); a second pump (38) installed in the toilet water tank (32); a backflow prevention valve (34) provided between the second pipe (33-2) and the third pipe (33-3); and a water shutoff valve (41) provided between a water supply pipe (31) and the water pressure control valve (41-1).

A system and method for utilizing gray water to flush a toilet includes a potable water source, a gray water tank, a first conduit coupled between the gray water tank and the toilet, and a pump configured to transfer gray water from the gray water tank to the toilet tank via the first conduit. The gray water tank may be configured to receive water from a sink of a bathroom, kitchen, or other room of a house, building, RV, etc. By utilizing gray water to flush a toilet, potable water may be conserved. In some examples, the system and method for utilizing gray water to flush a toilet also includes one or more sensors, one or more valves, one or more controllers, wireless transceivers, and one or more filters.

A toilet device for a rail vehicle includes flushing water-carrying installations and wastewater-carrying installations. The flushing water-carrying installations include an intermediate reservoir for storing flushing water and a supply line for supplying the intermediate reservoir with flushing water. The supply line includes a filter for filtering the flushing water supplied to the intermediate reservoir. The supply line is connected to the intermediate reservoir such that flushing water from the intermediate reservoir can be returned through the filter. A backflushing line is connected to the filter and opens into a wastewater-carrying installation. A method for operating the toilet device includes supplying the flushing water through a filter to fill the intermediate reservoir, and flushing a flushable bowl with flushing water from the intermediate reservoir or backflushing the filter with flushing water from the intermediate reservoir and draining off the flushing water to a wastewater-carrying installation.

For combination with a flush toilet water tank having a side wall, a pond water receptacle integrated with said tank side wall at the exterior of the tank, the receptacle opening upwardly, there being a water passage through the tank side wall, whereby pond water in the receptacle has a gravity determined top level at approximately the same level as water in the tank, and a removable cover extending over water in the receptacle, protecting against contaminated pond water gaining access to tank water.

The present invention relates to water disposable system comprised of a connecting member having a first side of the connecting member which is connected to at least one unwanted water source which feeds unwanted water to the toilet tank via gravity and further comprises at least one valve to control the flow of unwanted water. The water tank of the toilet is connected to a second side of the connecting member to receive unwanted water and is further enabled to receive fresh water from a fresh water pipe. The water tank comprises a strainer and a standpipe to refill the toilet bowl and the tank simultaneously whilst preventing debris from clogging the small ports within the rim of the toilet bowl. A flushing lever and a second end of the lever is coupled with a rubber flap via a chain with a small float attached at the minimum water line. The purpose of the rubber flap is to allow sufficient water into the bowl in order to flush waste, and the small float attached to the chain is to maintain tension on the chain keeping the flap open when only a small amount of water is available and to allow efficient flushing. Fresh water is maintained at a minimum in the tank by the use of two floats in communication with respective levers to allow fresh water to enter the toilet tank up to a preset volume by water level within the tank. The first float is situated at a low height within the tank to maintain the minimum volume of water required to flush waste. The second float is situated at a height to maintain the maximum volume of water required to flush waste. The operation of the second float can be suspended, allowing empty volume in the toilet tank to be filled by unwanted or gray-water as it becomes available from the attached sources. Further, a button, wherein a first end of the button is enabled to be actuated by the user to flush the fresh water from the water tank and a second end of the button is coupled with a second float, wherein the second float does not allow the intake of the fresh water from the fresh water pipe until the button is actuated by the user.

The present invention is directed towards a toilet water reclamation system that conserves water by using reclaimed water. The system comprises a first receptacle that nests into a second receptacle, which is secured to the toilet tank cover. Shower water, or other water, is collected in the first receptacle and allowed to sit until it is ready to be used. When the toilet is flushed, the first receptacle is lifted from the second receptacle and its contents are poured into the second receptacle. The second receptacle has an aperture to allow the passage of the water into the toilet tank, replacing the flushed water.

A toilet tank structure is formed by a primary-secondary water tank set, a tap water inlet control valve, a secondary water tank inlet control valve and a flush control module, and the tap water inlet control valve, the secondary water tank inlet control valve and the flush control module are provided for controlling the flushing and water supply to minimize the waste of water resources effectively, so as to achieve the effects of saving water and improving functionality.

The present invention relates to water disposable system comprised of a connecting member having a first side of the connecting member which is connected to at least one unwanted water source which feeds unwanted water to the toilet tank via gravity and further comprises at least one valve to control the flow of unwanted water. The water tank of the toilet is connected to a second side of the connecting member to receive unwanted water and is further enabled to receive fresh water from a fresh water pipe. The water tank comprises a strainer and a standpipe to refill the toilet bowl and the tank simultaneously whilst preventing debris from clogging the small ports within the rim of the toilet bowl. A flushing lever and a second end of the lever is coupled with a rubber flap via a chain with a small float attached at the minimum water line. The purpose of the rubber flap is to allow sufficient water into the bowl in order to flush waste, and the small float attached to the chain is to maintain tension on the chain keeping the flap open when only a small amount of water is available and to allow efficient flushing. Fresh water is maintained at a minimum in the tank by the use of two floats in communication with respective levers to allow fresh water to enter the toilet tank up to a preset volume by water level within the tank. The first float is situated at a low height within the tank to maintain the minimum volume of water required to flush waste. The second float is situated at a height to maintain the maximum volume of water required to flush waste. The operation of the second float can be suspended, allowing empty volume in the toilet tank to be filled by unwanted or gray-water as it becomes available from the attached sources. Further, a button, wherein a first end of the button is enabled to be actuated by the user to flush the fresh water from the water tank and a second end of the button is coupled with a second float, wherein the second float does not allow the intake of the fresh water from the fresh water pipe until the button is actuated by the user.

A toilet tank structure is formed by a primary-secondary water tank set, a tap water inlet control valve, a secondary water tank inlet control valve and a flush control module, and the tap water inlet control valve, the secondary water tank inlet control valve and the flush control module are provided for controlling the flushing and water supply to minimize the waste of water resources effectively, so as to achieve the effects of saving water and improving functionality.

A method of flushing a toilet that includes opening a first valve to introduce a first supply of grey water into a passage to prime a siphon; opening a second valve to introduce a second supply of water into a bowl from a tank, the bowl having an outlet that is in fluid communication with an inlet of the passage; closing the first valve to shut off the first supply of water; evacuating the contents of the bowl through an outlet of the passage by way of the siphon generated by the introduction of the first supply of water and the introduction of the second supply of water; and closing the second valve to shut off the second supply of water.