How a Dishwasher Works
The dishwasher takes in cold water and heats it to a temperature far higher than possible for hand washing. The dishwasher does not use a great deal of water, as it does not actually fill up. The water enters through a resin-based water softener, usually in the base of the machine. The water softener uses granular salt to maintain its efficiency and will require topping-up regularly. Pumps force the water at high temperature into rotating arms containing spray jets. It is the force of the water that rotates the arms and enables the water and detergent to reach all parts of the load. After the programmed cycle of washing and rinsing is complete, heating elements dry the dishes, or they are left to drain dry.