Weekly, if no algae is present: Use 2.5 ounces of SuperPhos per 5,000 gallons to maintain phosphate levels at or below 100 ppb (parts per billion).
If algae is present: First add a dose of Phoenix 3 month Algaecide. Test water using a phosphate test kit. Use dosage chart below to determine correct dosage. With filter running, disperse the proper amount of SuperPhos by adding it slowly around the edge of the entire pool and in front of the return line. Run filtration system for 24 to 36 hours. Shock the pool. Brush pool surface and vacuum to filter. Watch the filter pressure and clean or backwash as necessary. Test for phosphates again.
- Use 2.5 ounces of SuperPhos per 5,000 gallons to maintain phosphate levels at or below 100 ppb