Hayward Perflex Perflex EC50C90 Series - Page 8

Perflex™ Extended Cycle Filtration System Start-Up & Operation (cont.) Gauge/Inspection Port Adapter The gauge/inspection port adapter provides an easy way to look into the filter at the "top" area of the tube nest assembly. It gives a quick inspection capability to check the tube nest condition (algae, calcium or D.E. build-up, etc.), without requiring removal of the filter head. It also allows you to wash off trapped debris and excess D.E. from between the Flex-Tubes and from under the tube sheet by spraying with a garden hose. To remove adapter - Shut off pump and valves, and drain water in filter to below port. Unscrew adapter, with gauge, counterclockwise. To re-install - Thread adapter, with O-ring in place, securely into filter housing. Preventative Maintenance While Perflex filters are basically resistant to the difficulties often encountered as a result of chemical build-up in swimming pools, it is important to keep in mind that the mineral content in a pool increases every day as a result of the chemicals and the normal water evaporation process. If the concentration of minerals is allowed to get too high, the minerals will form deposits on the Flex-Tubes inside the filter, and will eventually result in shortened filter cycles. To guard against this, a yearly chemical cleaning (soaking) of the Flex-Tube assembly is suggested. Use commercially available 20% muriatic acid added to water in 1 to 1 ratio; OR use other commercial filter element cleaner mixed in accordance to the package instructions. WARNING - Use a plastic container and take extreme care - harmful to eyes, skin, and clothing. Always wear rubber gloves and eye protection. WARNING - Do NOT add water to acid. WARNING - Do NOT mix chlorine and acid. After cleaning, thoroughly flush all affected parts with cold water. Winterization In areas where sub-freezing temperatures can be expected, the filter should be drained and removed from its operating location and stored indoors. Prior to removal, cycle the filter as described under "Cleaning". 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. Pool Chemistry Guidelines Suggested Pool Chemistry Levels pH Total Alkalinity Chlorine (Unstabilized) Chlorine (Stabilized) Chlorine Stabilizer (Cyanuric Acid) 7.2 to 7.6 100 to 130 ppm 0.3 to 1.0 ppm 1.0 to 3.0 ppm 40 to 70 ppm Action Required to Correct Pool Chemistry To Raise To Lower Add Soda Ash Add Sodium Bicarbonate Add Chlorine Chemical Add Chlorine Chemical Add Stabilizer Add Muriatic Acid or Sodium Bisulphate Add Muriatic Acid No action - Chlorine will naturally dissipate No action - Chlorine will naturally dissipate Dilution - partially drain & refill pool with water that has not been treated with Cyanuric Acid.