Replacing eSpring cartridge. Each eSpring Water Treatment System Cartridge contains an electronic “Smart Chip” that connects it to the system’s LED monitor display which uses simple icons and audio cues to tell you that the system is functioning properly. The monitor also alerts you when it’s time to change the Cartridge. Within the Cartridge, the advanced UV Lamp is surrounded by a highly reflective stainless steel reflector and protected by a highly transmissive quartz sleeve to maximise its effectiveness. The lamp lights only when water is flowing and uses exclusively designed filaments for rapid starting and a special gas mixture to make the lamp light instantly. This lamp destroys more than 99.99% of waterborne, disease-causing bacteria and viruses in drinking water. It is recommended that the Cartridge be replaced once a year or once every 5,000 litres of water.* Features Uses an activated Carbon Filter for effective removal of contaminants. Incorporates an advanced ultraviolet (UV) lamp to destroy waterborne pathogens. Tracks usage through Radiofrequency Identification (RFID) Technology, which transfers usage data to the LED monitor display seamlessly. Cleans the equivalent of 10,000 bottles of water*. Benefits Improves taste, odour and clarity of water. Effectively reduces more than 140 potential health-effect contaminants and retains beneficial minerals such as calcium and magnesium with its Carbon Filter. Destroys more than 99.99% of waterborne, disease-causing bacteria and viruses in drinking water with its ultraviolet light technology. Informs you of the remaining Cartridge life and system status through a patented monitoring system. *Average filter life depends on usage and water quality.