Abstract: The invention provides an apparatus for enabling stock washing liquor to be prepared from washing-agent powder taken directly from the powder container containing it, without producing any dust, and to store the liquor thus prepared for supply to at least one industrial wet vacuum cleaner. The apparatus includes a tub-shaped bottom section and a top section which is hermetically mounted on the bottom section. A suction line leads into the container, the end remote from the container being inserted into the powder in the powder container. A fresh-water line also terminates in the container. The water is directed onto the stream of powder passing through the suction line. A stock-liquor feed line is operatively linked to a pump to permit liquor to be pumped from an inlet near the floor of the container and out of the container.

Abstract: An apparatus for preparing a stock wash liquor includes a stock liquor container with a stock liquor container comprising a tub-shaped bottom section and a top section which is hermetically mounted on the bottom section and is fitted with an integral suction fan designed to generate an underpressure or partial vacuum in the bottom section. A suction line leads out of the container and into a container of powder. The aim of the invention is to further develop a device of this kind so that stock liquor can be prepared from cleaning agent powder taken directly from its container without producing any dust, and the stock liquor thus prepared stored for feeding to industrial washing or cleaning machines. This is achieved by locating a secondary suction line end inside the stock liquor container at a point which is remote from the point of entry of a primary suction line into the bottom section.

Abstract: The invention concerns apparatus for holding a bag containing powder so that powder can be removed through a suction line. The invention enables a bag-shaped powder container to be held in a position permitting the powder to be sucked out by the suction line. This is achieved by using a trough-shaped or bucket-shaped container. The bracket has a gripper element which hangs from a horizontal support arm, and a suction-line holder. The support arm and the suction-line holder are each located at a height above the container such that, when a bag is placed in the container, the bag is gripped at one of its top corners by the gripper element and held upright. The suction line is held so that it passes down through the suction-line holder and passes freely through an opening, in particular a slit-shaped opening, in the top of the bag and into the powder.

Abstract: A method for washing institutional crockery in a dishwashing machine having at least three washing zones with at least three wash tanks in which the crockery is contacted with wash liquor having an increased concentration of surfactant by introducing make-up surfactant into the penultimate wash tank and bypassing a portion of the fresh water feed from the last wash tank around the penultimate wash tank.

Abstract: A dishwashing machine includes a washing tank for receiving wash water, and a detergent from a detergent dispensing system. A separate dosing system includes a tank for storing bleach, and a pump for supplying bleach from the bleach tank to the washing tank in measured quantities at predetermined times to maintain a desired active oxygen content therein over a complete cycle of operation.

Abstract: In an industrial dishwasher a cleaning solution which is highly concentrated relative to the rinsing water is recirculated in a washing region over items to later be rinsed, whereby the cleaning solution is directed into a collector trough, where the level of the solution is maintained automatically through use of a metering tank juxtaposed to the collector trough, whereby the metering tank collects rinse water, and a non-return flap valve located between the collector trough and metering tank provides for rinse water to flow from the metering tank into the collector trough only at such times when the level of the cleaning solution in the collector trough is lower than the level of the rinse water in the metering tank at upper-most regions thereof.

Abstract: Stable, alkaline, granulated dishwashing agent composition containing active chlorine for use in mechanical dishwashers, having a content of builder salts, alkali metal silicates, alkali metal carbonates and, optionally, nonionic surface-active compounds and containing from 1% to 30% by weight of finely divided trichloroisocyanuric acid in the form of granulates or prills with a total surface area as small as possible and having a degree of purity of .gtoreq. 99% as determined by laser-Raman spectroscopy, and from 10% to 40% by weight of granulated alkali metal hydroxide with a total surface area as small as possible.