SmartPlus can save up to 12,000 Gal. of water each year and reduce electrical consumption up to 94% when compared to traditional continuous run domestic hot water recirculation pumps. A Taco SmartPlus circulator pump is installed on the hot water supply line, or on the hot water return line, and controlled by the SmartPlus electronic control board. The SmartPlus circulator has a mode select toggle switch on the electronic control board that allows for 2 operation modes. “Pulse” or “Smart” mode can be selected using the toggle switch located on the capacitor base mounted electronic control board. A yellow LED indicates which mode is selected. All operation is automatic, no manual timer or temperature setting is required.