Nature 2 Express Replacement Cartridge

Routine Maintenance:

For pool 5,000 to 25,000 gallons.

Replace cartridge every 6 months or season, whichever is shorter.

Install the Cartridge:

1. Install the cartridge into your pool filter after water is balanced.
2. Superoxidize the pool water with chlorine according to manufacturers instructions to burn off contaminants and active cartridge. Initial superoxidation with chlorine is required to burn off contaminants and activate cartridge.
3. Run the circulating pump either - 24 hours a day for 4 days, maintaining 1-2 ppm free chlorine throughout, or 6 hours per day for 14 days, maintaining 1-2 ppm free chlorine throughout.
4. Let chlorine dissipate to 0.5 ppm once start-up period is completed. Do not enter pool if the free available chlorine residual is over 3 ppm.

Metallic Silver: 3.51%, Copper Sulfate Petahydrate: 8.23%, Other Ingredients: 88.26%