A fluid-driven chemical product dispensing system dispenses fluid chemical product concentrates. The dispensing system includes a fluid drive unit powered by flow of a fluid, such as a diluent, and a pump which delivers the fluid chemical product concentrate from a supply to a destination. Upon exit from the fluid drive unit, the diluent is also delivered to the destination, where it mixes with the dispensed fluid chemical product concentrate to form a use solution. The dilution ratio of the volume of fluid chemical product concentrate dispensed per unit time versus the volume of diluent exiting the drive unit per unit time is constant over a defined range of diluent flow rates.

A dishwasher comprising a tub, a reuse tank, and a controller for implementing a wash cycle in the tub, the controller comprising a clock, the controller operably coupled to a recirculation pump and a drain pump, the controller configured (a) to cause the recirculation pump to supply liquid used during the wash cycle to the reuse tank, (b) to monitor via a clock a period of time that the liquid is within the reuse tank, and (c) when the period of time is greater than a predetermined period of time, (i) to cause a control valve in an outlet conduit to open and allow the liquid to flow from the reuse tank to a sump and (ii) to cause a drain pump to drain the liquid from the sump and out of the dishwasher.

Disclosed herein is a chemical dosing system for an appliance, such as a laundry washing machine or a dishwashing machine, having a water inlet, the system comprising a meter determining the volume of water supplied to the appliance, a pump for dispensing a quantity of a chemical to the appliance and a control unit arranged to receive a signal from the meter and to cause to be dispensed to the appliance a volume of chemical that is proportional to the quantity of water supplied to the appliance. The disclosed system may enable a correct quantity of chemical to be automatically dispensed to many types of appliance, without the need to know anything about the appliance, or to derive an electrical signal from the appliance.

A method of operating a dishwasher includes a tub that at least partially forms a treating chamber and a reuse tank fluidly coupled to the tub for storing liquid from the tub for subsequent reuse in the treating chamber. The method includes supplying liquid from the reuse tank to the tub, sanitizing liquid in the tub by heating the liquid to a sanitizing temperature by operating a heating element located in the tub and maintaining the liquid at or above the sanitizing temperature for a sanitizing time period sufficient to sanitize the liquid, and supplying the liquid in the tub to the reuse tank after sanitizing to sanitize the reuse tank.

The present inventive concept relates to a device (500) utilizing water for a group of cleaning procedures, wherein each cleaning procedure (100) in the group of cleaning procedures comprises a plurality of cleaning phases (102, 104, 106, 108) each using cleaning phase water having a substance content with respect to a number of substances, wherein the device (500) comprises a sensor arrangement (554) configured to determine a first substance content (110) with respect to at least one of the number of substances in first cleaning phase water from a first cleaning phase (102) being part of the plurality of cleaning phases (102, 104, 106, 108); wherein the device (500) is configured to end the first cleaning phase (102) if a pre-determined condition related to the first substance content (110) and associated with the first cleaning phase (102) has been met.

The present inventive concept relates to a method for optimizing water usage in a device utilizing water for a group of cleaning procedures, wherein the device comprises a sensor arrangement (518) and a data processing device, wherein the method comprises the steps of: determining a first substance content (400a) of first cleaning phase water from a first cleaning phase of the cleaning procedure (428) using the sensor arrangement (518); in the data processing device, receiving data comprising a target substance content interval requirement (844) of at least one of a plurality of cleaning phases (314); in the data processing device, comparing the first substance content to the target substance content interval requirement (844); and forming cleaning phase water to be used in the at least one of the plurality of cleaning phases (314) by transferring the first cleaning phase water to the at least one of the plurality of cleaning phases (314) based on the comparison.

A method for the dosing of cleaning agents in cleaning machines, including the steps: receiving control information items, wherein the control information items are dependent on information about a cleaning machine; determining the progress of a cleaning operation; dosing of cleaning agent depending on the received control information items and the determined progress of the cleaning operation; wherein the information about the cleaning machine can be determined via a sensor-based automatic recognition.

A system for dosing substances such as cleaning and/or care agents is disclosed. The system includes a dosing device, at least one energy source, a control unit, a sensor unit, and at least two cartridges for respectively accommodating at least one of the cleaning and/or care agents. The at least two cartridges are capable of being coupled to the dosing device.

A retrofittable sensor unit for controlling a dosing device of a cleaning machine includes an acquisition module having at least one sensor for capturing measurement variables, at least one monitoring unit for determining a current degree of soiling of articles for cleaning on the basis of the captured measurement variables, a communication unit configured to communicate with at least one dosing device, in particular to transmit a dosing command to at least one dosing device depending on the current degree of soiling of the articles for cleaning. The retrofittable sensor unit can be arranged separately from the dosing device.

A fluid-driven chemical product dispensing system dispenses fluid chemical product concentrates. The dispensing system includes a fluid drive unit powered by flow of a fluid, such as a diluent, and a pump which delivers the fluid chemical product concentrate from a supply to a destination. Upon exit from the fluid drive unit, the diluent is also delivered to the destination, where it mixes with the dispensed fluid chemical product concentrate to form a use solution. The dilution ratio of the volume of fluid chemical product concentrate dispensed per unit time versus the volume of diluent exiting the drive unit per unit time is constant over a defined range of diluent flow rates.