Used 500 GPM D.I. water system mfg. by LA Water Treatment Corp., built in 1988. The demineralizer system consists of two (2) countercurrent regenerated stratabed cation units, one (1) decarbonator, two (2) countercurrent regenerated monobed anion units, two (2) mixed bed units, one (1) acid regeneration system, one (1) caustic regeneration system, and associated control eqiupment. Each cation/anion train is designed to deliver 250 gpm of demineralized water for a total capacity of 500 gpm. Each train will be regenerated once per day. Each mixed bed will deliver 250 gpm of demineralized water for a total capacity of 500 gpm. Each mixed bed will be regenerated every three (3) to five (5) days.