If feeding from a storage reservoir it is recommended that a Low Water Pump Protector be added to the E-PureŽ system to ensure that the pump is protected in the event the reservoir does not have a sufficient quantity of water to satisfy the requirements of the system. Adaptable to storage reservoirs with a 1/2" NPTF connection. Includes 6 Ft. cord to attach directly to the E-PureŽ system.