1. Neutralize chlorine ‐ chlorine levels should be less than 1ppm.
  2. Add Poly‐Tech 60 (polymer‐based algaecide) ‐ extra protection for the pool while Conquest is working and chlorine levels are low.
  3. Backwash filter.
  4. Add Conquest (50% more product is generally needed for concrete pools) ‐ run system continuously for 24‐48 hours.
  5. Backwash the filter ‐ disassembling and cleaning out the filter is preferred.
  6. Raise chlorine level back to desired level.