{HEAD ~ The present invention} relates generally to water purification and, in a particular preferred embodiment, to a synergistic combination of a chlorine generator and metallic ion dispenser which produces unexpected benefits of increased reliability, decreased maintenance costs, and {TAIL ~ improved water purification} 
{ HEAD ~ The present invention } relates generally to water purification and , in a particular preferred embodiment , to a synergistic combination of a chlorine generator and metallic ion dispenser which produces unexpected benefits of increased reliability , decreased maintenance costs , and { TAIL ~ improved water purification }
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