ClearWater Scale and Stain Remover is a powerful solution designed to eliminate stains and limescale from your hot tub, pool, or spa. It is particularly effective in hard water areas, helping to prevent the build-up of scale and control stains caused by metallic compounds and hard water. This one-litre bottle is easy to use, with straightforward instructions, and helps maintain the pristine condition of your water features, prolonging the life of your filter and pump. ClearWater is a BISHTA approved member and recommended by brands like Bestway and Lay-Z-Spa for reliable and safe water treatment.