Dosing: New Installations: Corgi TripCon Cleanser should be circulated around the system, at normal running temperature with all valves open for two hours Thoroughly flush the system before refilling and adding Corgi TripCon Inhibitor Existing installations: Corgi TripCon Cleanser should be circulated around the system, at normal running temperature, with all valves open, for a minimum of two hours or up to two weeks depending on the condition of the system, until satisfactory performance is obtained Thoroughly flush system before refilling and adding Corgi TripCon Inhibitor. This product was manufactured under a quality system accredited to ISO 9001 and an environmental management system accredited to ISO14001. NOT Suitable for PRIMATIC systems.