Leisure Time Metal Gon Item # LTMGP Description: This concentrated formula is easy to use. Use with each refill to quickly neutralize metals in your spa and prevent unsightly stains. Features: Prevents iron and other metal buildup from staining spa finish One time application. Use when filling, or re-filling your spa How to use this product: 1. Turn off ALL equipment.2. Pour entire bottle contents evenly around spa edge.3. Run filter for at least 30 minutes. Benefits of this product: Prevents iron and other metals from building up in your spa. The best time to treat for metals is when you first fill the spa or drain and refill the unit. About Leisure Time Spa Products: For more than 25 years, Leisure Time™ has been the premier name in spa water care. You can depend on the quality of these spa care products for the up keep and water maintenance of your spa.