... eyes, dry & itchy skinEliminate costly replacement of faded swimwear Q. How to choose right ozone for my Swimming Pool?A. For swimming ... used.Swimming pools chemical make up, bather load, dirt mildew mold wind contaminates, location, pump run time, temperatures, size, determine ozone ... 4 ppm however, Manganese will form soluble permanganate, showing up as a pink color.3.Algae Removal- Ozonation of a ...