Possible Cause
pH too high.
Solution
Test pH and total alkalinity. Add pH DOWN as directed. Adjust as required.
Preventative Maintenance
Test frequently and maintain pH of 7.2-7.8 and total alkalinity at 80-120 ppm.
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Possible Cause
Free chlorine residual too low
Solution
Test for chlorine residual and adjust as needed. Shock treat with OXY-BRITE.
Preventative Maintenance
Maintain free chlorine level of 1-3 ppm.
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Possible Cause
Filter not removing small particles
Solution
Use SUPER BLUE to coagulate small particles. Check filter operation.
Preventative Maintenance
Use SUPER BLUE weekly, 1 oz. per 5000 gallons.
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Possible Cause
Backwashing sand filters too often
Solution
Backwash less frequently, only as recommended by filter manufacturer’s directions.
Preventative Maintenance
Use FILTER RINSE each time you backwash.
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Possible Cause
Dissolved metals in water
Solution
Use SEQUA-SOL to control metals in water.
Preventative Maintenance
Use 4 oz. per 10,000 gallons of SEQUA-SOL weekly to prevent staining and scale formation.