ProTeam Metal Magic removes metals from pool water and metal stains and scale from surfaces. This product is non-foaming and pH neutral. It crystallizes and removes metals from pool water through the filter. Metal Magic is compatible with all types of filtration systems. This product also prevents staining and protects plumbing and equipment. It removes iron, copper, silver, and manganese metals. Best of all, Metal Magic is made right here in the USA to ensure the highest quality, allowing you to buy with confidence.