A dishwasher and method for treating dishes according to a cycle of operation, wherein the dishwasher can include a tub at least partially defining a treating chamber, a dish rack movably received within the treating chamber and a spray system fluidly connected to the water supply. The dish rack is configured for receiving dishes or utensils for treatment during the cycle of operation. The spray system can include a set of sprayers located within the treating chamber that are configured to selectively emit spray from the water supply onto dishes or utensils on the dish rack.