Abstract: A solid detergent dispenser for use with a dishwashing machine includes a chamber and a lid. The chamber is configured and arranged to receive a solid detergent having a particular composition. A water inlet receives water from a water source, and the water flows through a tunnel into the bottom of the chamber. The chamber is flooded with water from the bottom to ensure relatively constant erosion of the solid detergent, which ensures that a relatively constant concentration of the solid detergent is used in the dishwashing machine. A water outlet allows water to flow out of the chamber into the dishwashing machine. The water must flow into the chamber faster than it flows out of the chamber to ensure that the appropriate amount of dissolution of the solid detergent occurs. The only valve used in the preferred embodiment is a valve to control the amount of water flowing into the water inlet.

Abstract: A solid product level indicator (100) for determining the specific gravity of a use-solution (120) thereby indicating the concentration of the solid product (123) dissolved in the use-solution (120) includes a float assembly (125). The float assembly (125) includes a float (101) and a float stem (102). A guide member (104, 106 and 108) positions and guides the float (101). Magnets (114) contained inside the float (101) trigger a signal mechanism (112) inside the float stem (102) when the float (101) is displaced along the stem (102) due to the decrease in the specific gravity of the use-solution (120) when the concentration of the solid product (123) is low. The float assembly (125) can be positioned to provide early or late alert to allow replenishment of the solid product (123) before the supply of solid product (123) is critically low. The solid product level indicator (100) can be used in systems with constant liquid levels or variable liquid levels.

Abstract: A solid product level indicator (100) for determining the specific gravity of a use-solution (120) thereby indicating the concentration of the solid product (123) dissolved in the use-solution (120) includes a float assembly (125). The float assembly (125) includes a float (101) and a float stem (102). A guide member (104, 106 and 108) positions and guides the float (101). Magnets (114) contained inside the float (101) trigger a signal mechanism (112) inside the float stem (102) when the float (101) is displaced along the stem (102) due to the decrease in the specific gravity of the use-solution (120) when the concentration of the solid product (123) is low. The float assembly (125) can be positioned to provide early or late alert to allow replenishment of the solid product (123) before the supply of solid product (123) is critically low. The solid product level indicator (100) can be used in systems with constant liquid levels or variable liquid levels.