... of faded swimwear Q. How to choose right ozone for my Swimming Pool?A. For swimming pools with a water temperature of 28°C ... , Cobalt, Copper, Lead, Manganese, Nickel, Zinc- can be treated in a similar way. At Ozone levels above 4 ppm however, Manganese will form ... soluble permanganate, showing up as a pink color.3.Algae Removal- Ozonation of a water contaminated with Algae oxidizes and floats ...