What makes Area Rug Cleaning Company‘s immersion system better? The Centrum Force Wash Tub and Centrifuge Technology! Like today’s new energy efficient washing machines, the effectiveness of this new equipment is based on the principles of gentle tumbling, dwell time and extremely fast spin cycles that produce thorough cleaning with less moisture going into the dryer. An added bonus is that less cleaning agents are required, resulting in easier rinsing, softer fiber and more brilliant colors.