Removes stains stuck to walls and joints, pool bottoms and stairs. Suitable for all types of surfaces: tile, liner and polyester. Redissolves any metal in water, copper, iron, nickel, etc. Very effective at removing yellow-brown stains from liner and polyester pools in less than 30 minutes. Does not attack stainless steel components. We recommend combining with PM-615 ION MAGNETIC or PM-655 COPPER OUT.
Initial dose for use: 20 g/m 3 .