A pump which brings about a flow of regenerating brine in a chamber containing substances with water-softening properties of a decalcifying device of a dishwashing machine. The pump includes a body (10) in which a brine inflow conduit (16) provided with a one-way valve (18) and a brine outflow conduit (12) provided with a one-way valve (14) are defined; a solenoid (20) arranged within the body (10); and a core controlled by the solenoid (20). The outflow conduit (12) has an initial portion (34) coaxial with the axis (24) of the solenoid so that, when the pump is not active, the mouth of the initial portion (34) is closed by the center portion of the membrane (44) which ensures the water-tightness in both directions between the inflow and outflow conduits (16, 12).

A drain box having a housing, a splash containment therein with a lower portion within a housing drain aperture, and a discharge conduit having a lower portion positioned within the splash containment in position above the drain aperture and extending upward through splash containment aperture, and an upper portion extending upward through a housing upper aperture and terminating above the housing upper portion for connection to an appliance discharge conduit. The conduit being attached to the housing to prevent a lower discharge conduit end from moving downward toward the drain aperture to less than a predetermined minimum distance above the housing drain aperture.

A dishwashing method in which water having an oxidizing and disinfecting action is provided in a dishwasher and used as dishwashing water or added to a dishwashing water, wherein, to provide the water, a) a stream of untreated water is fed into a reverse osmosis device and separated into a concentrate stream and a permeate stream, b) ozone is produced by an ozone generator, and c) the ozone is introduced into the permeate stream emerging from the reverse osmosis device, wherein the reverse osmosis controls ozone production in that the ozone generator is configured such that ozone is only produced and mixed with the permeate stream when the reverse osmosis device is in operation.

A dishwasher includes a dishwashing tub in which dishes are washed; a first tank configured to store therein cold washing water to be used for a next stroke; and a second tank configured to store therein hot washing water, which has been used in the dishwashing tub. The second tank is placed adjacently to the first tank to transfer heat from the stored hot washing water to the cold washing water. An opening is configured to deliver the hot washing water to the dishwashing tub; and a circulation pipe is configured to connect the dishwashing tub and the second tank to enable the hot washing water to circulate between the second tank and the dishwashing tub. A circulation valve is configured to allow the hot washing water to pass therethrough or to block the hot washing water from passing therethrough.

A method for removing moisture from moist air in an appliance, such as a treating chamber of a dishwasher, wherein a drying system includes a condensing system and heat exchange systems that enhance condensation with both ambient air and cold water. The method includes storing cold water for use during a cycle of operation; recirculating the moist air in the treating chamber through a condenser; during the recirculating, flowing ambient air over the condenser; and during the recirculating and after the flowing ambient air, flowing the cold water over the condenser.

A dishwasher (1), in particular a commercial dishwasher (1), which is in the form of a box-type dishwasher and has a treatment chamber (2) which can be closed and in which washware can be treated in accordance with a predefined or predefinable treatment program, wherein a washware detector apparatus (51) is designed to detect the type of washware to be, wherein the washware detector apparatus (51) has an optical identification system, which is oriented toward the washware to be treated, and an evaluation device, wherein the optical identification system is designed to record at least a portion of the light reflected by the washware to be treated as a reflection image, and wherein the evaluation device is designed to automatically distinguish between different types of washware on the basis of the recorded reflection image, wherein the extent of the reflection provides information about the type of washware.

Caustic-free detergent compositions are provided. Detergent compositions including an aminocarboxylate, water conditioning agent, non-caustic source of alkalinity and water beneficially do not require the use of additional surfactants and/or polymers to provide suitable detergency and prevent scale build-up on treated surfaces. The detergent compositions are used with a sanitizer to employ the caustic-free detergent compositions are particularly suitable for use as low temperature ware wash detergents that beneficially reduce scale build-up. Methods of employing the caustic-free detergent compositions are also provided.

A method for removing moisture from moist air in an appliance, such as a treating chamber of a dishwasher, wherein a drying system includes a condensing system and heat exchange systems that enhance condensation with both ambient air and cold water. Optionally, the method can also include a charge or charges of warm, ambient air or ambient air with moist air during recirculation of moist air.

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 lower rack for a domestic dishwasher is constructed for being liftable and includes a fixed lower rack element, and a removable lower rack element connectable to the fixed lower rack element and constructed for removal from the fixed lower rack element to thereby unblock access to a bottom area of a washing container of the domestic dishwasher.