{HEAD ~ The present invention} relates generally to {TAIL ~ 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 improved water purification 
relates generally to
{ HEAD ~ The present invention } relates generally to { TAIL ~ 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 improved water purification
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH