Metal & Stain Control: Clorox Pool&Spa Swimming Pool Scale, Metal & Stain Control is your solution to preventing unsightly metal stains and scale formation in your pool. Maintain the cleanliness of your pool surfaces with our dependable formula. Pool Metal Stain Cleaner: This product effectively removes fresh metal stains, including those caused by iron and copper, ensuring your pool stays clean and pristine. Ideal for Treating Hard Water: Our Swimming Pool Scale, Metal & Stain Control is the perfect solution for treating hard water conditions in your pool. Say goodbye to unsightly scale buildup and metal stains. Protects Equipment from Stains and Scale: Protect pool surfaces and equipment from scale formation and metal stains with Scale, Metal & Stain Control. Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations