a device and method for chemicals to be fed into a water system , treating the water system as it enters , for example , a fire protection mains and / or fire protection systems to protect and maintain the longevity of the water system preventing damages to the water system or enhancing the operation characteristics of the system . this device is a treatment system that may be installed as a portable or permanent device with chemicals such as , corrosion inhibitors , wetting agents , polymeric dispersants , biocides , biostats or other water chemical enhancing effects with means for injecting the chemicals into th fire protection system or a bypass feed system utilizing the fluid means without the need for any electricity . activation of the pump occurs when water enters the fps mains and fps sprinkler system from an outside source . valving is included to isolate the pump and drums , storage tank to prevent backflow from the fps .