Hayward HCF7030C HCF Series Cartridge Filter Operation Manual ISC7031HCF - Page 12

SERVICE AND REPAIRS REMEDY 9. Service and Repairs Consult your local authorized Hayward dealer or service center. No returns may be made directly to the factory without the expressed written authorization of Hayward Pool Products. SUGGESTED POOL CHEMISTRY LEVELS pH 7.2 to 7.8 TOTAL ALKALINITY 80 to 120 ppm CALCIUM HARDNESS 200 to 400 ppm COMBINED CHLORINE .2 ppm Maximum CHLORINE (STABILIZED) 1.0 to 3.0 ppm CHLORINE STABILIZER 60 to 80 ppm (Cyanuric Acid) PROBLEM SOLVING LIST LOW WATER FLOW 1. Check skimmer and pump strainer baskets for debris. 2. Check for restrictions in intake and discharge lines. 3. Check for air leak in intake line (indicated by bubbles returning to pool). SHORT FILTER CYCLES 1. Check for algae in pool and super-chlorinate as required. 2. Be sure chlorine and pH levels are in proper range (adjust as required). POOL WATER WON'T CLEAR UP 1. Check chlorine, pH and total alkalinity levels and adjust as required. 2. Be sure flow rate through filter is sufficient. 3. Operate filter for longer p eriods. Head Loss (FT water) Head Loss HCF7030C Top Manifold 14 12 10 8 6 4 2 0 0 20 40 60 80 100 120 140 160 Flow (GPM) 12