One set of controls determines whether the machine uses hot, warm, or cold water. The water enters the machine through hoses connected to hot and cold water pipes. The operator also sets controls to select the length of washing and rinsing time and the amount of water that enters the machine. The machine, which is powered by an electric motor, then operates automatically. Many automatic washing machines have special features, such as filters that remove lint, and dispensers for bleach and fabric softener.
Most automatic washers have an inner tub that is surrounded by an outer tub.
The washing takes place in the inner tub, which is called the basket. After the laundry has been washed and rinsed, the basket begins to spin rapidly. The spinning removes most of the water from the various items and throws it into the outer tub. The water is then pumped out of the machine through a drain hose. There are two types of automatic washers, agitator machines and tumbler machines.