The Stain Drop No. 1 is a powerful stain remover specifically formulated to eliminate iron and tannin stains caused by organic debris, such as leaves. It effectively breaks down iron buildup on pool surfaces within 2 to 7 days, depending on the severity of the staining. Ideal for use in chlorine-based sanitizing systems, including saltwater pools.

Note: For best results, use in water temperatures of 60F or higher.