Hayward VL Series Sand Filter Systems Model: VL40T32 - Page 6

MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE Pipe Size Flow rate Pipe Size Flow rate [mm] GPM [Liter/Min] [mm] GPM [Liter/Min] 1" 20 1 ½" 45 [32] [75] [50] [170] 1 ¼" 30 [40] [110] 2" 80 [63] [300] TABLE 2 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. PROBLEM SOLVING LIST LOW WATER FLOW REMEDY 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). 4. Backwash filter. SHORT FILTER CYCLES POOL WATER WON'T CLEAR UP 1. Check for algae in pool and 1. Check chlorine, pH and total superchlorinate as required. alkalinity levels and adjust as required. 2. Be sure chlorine and pH levels are in proper range (adjust as 2. Be sure flow rate through filter is required). sufficient. 3. Check surface of filter sand for crusting or caking (remove 1 " of sand if necessary). 3. Operate filter for longer periods. 4. Be sure multiport valve is set on "Filter" position. SUGGESTED POOL CHEMISTRY LEVELS pH 7.2 to 7.6 TOTAL ALKALINITY 80 to 120 ppm CALCIUM HARDNESS COMBINED CHLORINE CHLORINE (STABILIZED) 200 to 400 ppm 0.2 ppm Maximum 1.0 to 3.0 ppm CHLORINE STABILIZER (Cyanuric Acid) 60 to 80 ppm Page 6 of 8 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS TOP MOUNT VALVE SAND FILTERS ISVL40 Rev D