Removes stains attached on pool walls and grouts, floors and ladder. Suitable for all types of surfaces: tile, liner and polyester. Dissolves any metal (copper, iron, nickel, etc.) into the water. It’s very effective eliminating yellow-brownish spots on pool liner. Does not damage ladders, lights, handrails and other stainless steel components. It is recommended combine with PM-615 ION MAGNETIC or PM-655 COPPER OUT.
Inital dosage: 20 g/m3.