Hayward Perflex Models: EC65A EC75A - Page 7

Page 7 of 12 SERVICE & REPAIRS Consult your local authorized Hayward-Perflex dealer or service center. No returns may be made directly to the factory without the expressed written authorization of Hayward Pool Products, Inc. ALGAE CONTROL Algae is a form of plant life which can vary in size from a few thousandths of an inch to the size of a small tree. Of the many forms of algae, those most frequently found in swimming pool water are microscopic in size and green in color. Algae readily grows in sunlight and can, under favorable conditions, quickly overgrow a swimming pool turning it completely green in just a few hours. On the other hand, swimming pool water can be kept unfavorable to algae growth simply by maintaining a chlorine level of at least 0.5 ppm in the water at all times. The chlorine level should be checked at least once a day using a suitable test kit. IS65ING Rev A If an algae condition develops and the pool water "blooms" green, superchlorination of the pool will be necessary to clear it. Add unstabilized granular chlorine, or liquid chlorine. Follow chemical manufacturer's recommendation for superchlorination. The algae will quickly become inactive and can then be removed by the filter. Live algae, on the other hand, multiplies so fast that the filter cannot keep up with its growth rate. In an active algae situation, it may be necessary to regenerate the Perflex filter as frequently as every 2 to 3 hours. When correctly used, commercial algaecides are effective against algae, though algaecides should be used in conjunction with, and not as a substitute for, regular chlorination or superchlorination. Maintaining a chlorine level of at least 0.5 ppm in the pool water at all times is the most effective way to prevent algae growth in swimming pools. POOL CHEMISTRY GUIDELINES SUGGESTED POOL CHEMISTRY LEVELS pH 7.2 to 7.6 ACTION REQUIRED TO CORRECT POOL CHEMISTRY TO RAISE Add Soda Ash TO LOWER Add Muriatic Acid or Sodium Bisulphate TOTAL ALKALINITY 100 to 130 ppm Add Sodium Bicarbonate Add Muriatic Acid CHLORINE (UNSTABILIZED) 0.3 to 1.0 ppm Add Chlorine Chemical No action - chlorine will naturally dissipate CHLORINE (STABILIZED) 1.0 to 3.0 ppm Add Chlorine Chemical No action - chlorine will naturally dissipate CHLORINE STABILIZER 40 to 70 ppm Add Stabilizer (Cyanuric Acid) Dilution - partially drain & refill pool with water that has not been treated with Cyanuric Acid. PRODUCT REGISTRATION (Retain for Your Records) DATE OF INSTALLATION PURCHASED FROM MODEL SERIAL NUMBER ▲Retain this Warranty Certificate in a safe and convenient location for your records. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN www.haywardpool.com