Patent ID: 6869529

Claim:
A retro-fittable automatic chemical feed system for treating and removing undesirable contaminants from a fluid circulating system of the type having an inlet pipe leading to a fluid reservoir in and outlet pipe leading to the circulating system comprising in combination, an inlet pipe adapter including universal connection means for interconnection to the inlet pipe, an inlet fluid diverter connected to said adapter and in fluid communication therewith, said diverter including a first flow pipe in fluid communication with the fluid reservoir and a second fluid pipe for diverting a portion of the fluid flow therethrough, a chemical chamber containing a supply of fluid purification chemicals in a solid particulate format, said chamber having an inlet at one end thereof, said inlet being in fluid communication with said second fluid pipe thereby to permit fluid to enter said chemical chamber, and a fluid outlet provided in said chamber to permit treated fluid to exit said chamber, a vacuum breaker interposed between said diverter and said chamber along the path of said second fluid pipe, said fluid outlet being in communication with said liquid reservoir thereby to return treated fluid to said reservoir preliminary to the circulation of said treated fluid through the circulating system thereby to treat the fluid flowing through the circulation system and remove undesirable contaminants therefrom.