Converting water hardness and silica to an environmentally desirable complex is the result of new cooling water treatment chemistry. Over 95% of standard blowdown water is saved and reused providing significant water savings. This unique chemical approach provides multimetal corrosion control. The solubility of the new product is greater than 45% in ambient water. Solubility increases with temperature elevation. The highly soluble hardness chemical undergoes a separate reaction forming a fluid concentrate to be removed intermittently. Silica removal is maintained at less than 100 ppm. This new chemistry approach provides exceptional water savings in hard, alkaline cooling waters.