EVAPCO Water Systems has introduced the Water Saver, a device that substantially reduces water use for evaporative cooling equipment—whether new or as a retrofit. Water Saver is a capacitive deionization pre-treatment system to improve the efficiency of heat transfer and water efficiency for evaporative cooling systems. The capacitive deionization technology reduces dissolved ion concentrations to lower makeup water conductivity prior to use in evaporative cooling systems. Dissolved ions are removed from make-up water as they are attracted to the charged capacitors. Water Saver improves water efficiency by increasing operating cycles of concentration; this reduces blowdown and the use of treatment chemicals. Water Saver lowers cost of ownership, provides a 75-90 percent recovery rate, and improves a facility’s LEED rating. The technology is available in nine different configurations.