Suction Cleaners - These cleaners use the suction from your pool pump to clean the floor and walls as the cleaner moves around the pool's surface.
Pressure Cleaners - Pressure cleaners use the water as it returns into the pool to blow dirt, leaves and debris from the surface of the pool into the bag attached to the cleaner.
Robotic Cleaners - This type of cleaner plugs into a standard 110V electrical outlet and runs independently of your pool's pump and filter system. These units have no hoses and are completely self-contained.