Methods and systems are provided for verifying hygienic hand cleaning including a wash basin, having a contaminant sensor positioned in proximity to a drain of the wash basin, to measure a level of contamination of rinse fluid leaving the wash basin; and a processor and associated memory having instructions that when executed by the processor implement: receiving a signal from the contaminant sensor indicative of the level of contamination; and responsively, determining the level of contamination and comparing the level of contamination with a contamination threshold to determine a hand washing status.

Systems, methods, and techniques for cleaning sinks and dishes are provided. In some embodiments, a cleaning system comprises at least one fluid supply, at least one opening in a side wall of a sink basin, and at least one nozzle positioned along an exterior of the sink basin. The nozzle is configured to receive fluid from the fluid supply, and dispense fluid through an opening in a side wall of the sink basin to an interior surface of the sink basin. In some embodiments, the nozzle is configured to dispense fluid to the interior of a sink basin, such that substantially all surfaces of the interior of the sink basin are covered with a thin layer of fluid. In some embodiments, nozzle dispensing angle, duration of a cleaning cycle, flow rate or amount of dispensing fluid, or activation of a cleaning cycle may be manually or automatically controlled.

Disclosed are a container bottle joint and a container bottle assembly. The container bottle joint includes: a cover body comprising a water inlet pipeline and a water outlet pipeline extending upper and lower direction; a water inlet valve including a first spool, a first elastic member and a first sealing member, in particular the first spool is slidably arranged in the water inlet pipeline from top to bottom, and an upper end of the first spool is connected with the first sealing member; the first elastic member is arranged in the water inlet pipeline, and an upper end of the first elastic member is elastically pressed against a lower end of the first sealing member to elastically squeeze the first sealing member to move upward; and a water outlet valve including a second spool, a second elastic member and a second sealing member.

A multifunction tap assembly (18) for dispensing water, includes a tap body with a spout (2) for dispensing water. A valve body (6) has a mixer valve (8) including an inlet for water (20) from a hot water supply (H), an inlet for water (22) from a cold water supply (C), and an outlet. A selector control (14) on the valve body (6) can selectively direct cold water (30, 32) from the cold water supply to one or more water processing stations (34, 38). Each water processing station (34, 38) has an inlet for receiving cold water from the cold water supply as directed by the selector control (14) and processes the cold water to provide a processed water (36, 40) for dispensing from an outlet. A manifold connection (26) provides fluid communication between the outlet of the mixer valve (14) and each processing station outlet and has a manifold outlet in fluid communication with the spout (2).

Systems, methods, and techniques for cleaning sinks and dishes are provided. In some embodiments, a cleaning system comprises at least one fluid supply, at least one opening in a side wall of a sink basin, and at least one nozzle positioned along an exterior of the sink basin. The nozzle is configured to receive fluid from the fluid supply, and dispense fluid through an opening in a side wall of the sink basin to an interior surface of the sink basin. In some embodiments, the nozzle is configured to dispense fluid to the interior of a sink basin, such that substantially all surfaces of the interior of the sink basin are covered with a thin layer of fluid. In some embodiments, nozzle dispensing angle, duration of a cleaning cycle, flow rate or amount of dispensing fluid, or activation of a cleaning cycle may be manually or automatically controlled.

The present invention relates to a device for diffusing a fragrant product in a water stream. The device includes a main body with an inlet and an outlet for the water stream, interconnected by a channel for the passage of the stream. The main body is configured to be mounted on a water circuit with the inlet and the outlet arranged between an outlet of the water stream distribution system and a shower pipe inlet, respectively, so as to allow the water stream to circulate through the passage channel of the distribution system towards the shower pipe. The main body includes a receptacle configured to receive and position a diffuser body in the passage channel for the fragrant product to be diffused. The diffuser body blocking, at least partially, the passage channel such that, in the open position, the water stream from the outlet of the distribution system flows through the diffuser body when passing through the channel, causing the fragrant product to be diffused in the water stream and hence allowing a perfumed water stream to reach the shower pipe.

The present invention discloses a filtration system for treating untreated liquid such as greywater or any liquid that is contaminated with impurity and is required to be treated before use. The filtration system is a gravity fed liquid treatment system and includes components such as a top liquid tank for holding untreated liquid and a bottom liquid tank for holding treated liquid. The filtration system further includes one or more filtration media containers and filtration columns. Each filtration column is a composition of the stacked filtration media containers. The filtration system may be used for cleaning the contaminated water or keeping clear the surface of open water from oil or the like floating materials by separating or removing these materials from the water. The filtration system may include portable or detachable small-scale multistage treatment devices and may be implemented using household-type filters for producing potable filtration system.

A water purifier including a water discharge unit configured so that purified, cold, and hot water are selectably dischargeable therethrough, the water discharge unit including a rotatable body, a water discharge tube having a changeable position according to rotation of the body, and a display device including a first and a second light source, a light guide cover, and a guide case to guide light emitted from the first and second light source so as to be incident on the light guide cover, and to prevent mixing of the light from the first and the second light sources. The light guide cover projects the light from the first light source in a direction of water discharge from the water discharge tube, and projects the light from the second light source toward an outer peripheral surface of the display device to indicate which of purified, cold, and hot water is selected.

A cleaning apparatus for use with a water source, the cleaning apparatus including a handheld cleaning device that includes a transducer therein that is capable of stimulating water located inside a body of the handheld cleaning device, such that bubbles created by the excitation of the water via the transducer can be used to provide a cleaning effect, for example to clean the surface of a soiled object by way of bubbles bursting at, on or near the surface of the object.

A water-dispensing device includes a source water intake, a spigot, and first and second filters arranged between the intake and the spigot. The first filter includes a first inlet and outlet. At least the first inlet includes a first electrically controlled valve for selectively placing the first filter in fluid communication with the intake. The second filter includes a second inlet and outlet. At least the second inlet includes a second electrically controlled valve for selectively placing the second filter in fluid communication with the intake. A controller is configured to: (i) receive a water selection from a user, and (ii) configure the first and second valves based on the selection such that water flowing from the intake toward the spigot will enter any of the first and second filters corresponding to the selection and bypass any of the first and second filters that do not correspond to the selection.