The method used in protecting the coils in evaporative condensers from scale and other deposits and removing the deposits after they have formed depends on the characteristics of the water in the particular location. If the water at the installation site is very hard, solids will form between the coil fins. The first step to take for the prevention of this scale formation is to provide ample overflow. This minimizes the concentration of solids in the water and prevents the formation of slime. If the water composition is such that scale will form readily, the water should be chemically treated. For this treatment, a sample of the water should be sent to a competent water treatment organization that will make a complete analysis and will recommend the proper chemical solution to use.