HOW VARIABLE-SPEED PUMPS SAVE ENERGY
When we talk about pool renovations, repairs and retrofits that reduce a pool’s energy consumption, the focus typically turns to the pump, because it consumes more energy than any other piece of pool equipment. Plus, a well-designed variable-speed pump can reduce the energy costs of running a swimming pool by up to 90 percent.
Historically, pool pumps with induction motors that run at only one or two speeds have drawn more energy than is required to circulate pool water. That is because a pump that can run at only one speed must use a powerful enough speed to do the pump’s most demanding job (e.g., running a waterfall or pool cleaner). However, it takes far less power to simply keep water filtered—a difference single-speed pumps cannot address.
No matter what kind of pump is being used, slower pump speeds save energy. They also dramatically reduce the noise level associated with traditional pool pumps and reduce wear on not only the pump itself but also on filters, heaters, chlorinators and other equipment that water flows through.
Certified Pool Operator and Technician Mike Sullivan