Dishwasher

A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising:

• a chassis comprising a base on which is supported an open-faced tub, which at least partially defines a treating chamber;
• a closure selectively moveable between an open position and a closed position to selectively open and close the open-faced tub;
• a controller for selectively controlling the cycle of operation of the dishwasher;
• a dispensing device in communication with the controller;
• and
• an engagement assembly comprising a plurality of dispensing cartridges, each of the plurality of dispensing cartridges having a chamber for receiving a treating chemistry therein and an end in fluid communication with the chamber thereof;
• wherein one of the dispensing device and the engagement assembly is mounted for relative movement with respect to the other of the dispensing device and the engagement assembly between a plurality of discrete positions in which one of the ends for a corresponding dispensing cartridge is fluidly aligned with the dispensing device, whereby the controller is configured to selectively align one of the plurality of the dispensing cartridges with the dispensing device and selectively dispense treating chemistry from the aligned dispensing cartridge.