FORMULA 500
§ A superior, uniquely blended product which is highly effective in controlling the growth of fungi, greenish free-floating varieties of algae, mustard algae and the so-called black algae.
§ Formula 500 will not foam, will not react with chlorine or interfere with the efficient operation of sand, diatomaceous earth or cartridge filters.
§ Effective at any pH level and is pH neutral
§ Reduces the sanitizer demand
§ Non-metallic, contains no copper which can stain pool walls.
§ Use for opening, closings and throughout the season