on orders over $75
Same formulation as the original Chemi-Pure, with the addition of ferric oxide to remove phosphates and red slime (cyano-bacteria). Promotes aerobic bacterial growth while removing dissolved organics.
Directions: Use 1 unit for 40 gallons, 2 units for 100 gallons and 1 extra unit for every additional 25 gallons. Each unit lasts 6-8 months.