Quickly dissolves rust and rust stains on virtually all materials including toilet bowls and tanks, bathtubs, clothing, glassware, water softeners, washing machines, dishwashers, tile, masonry, stone and more. Bust-a-Rust changes rust into a form that can easily be flushed away. Use it in your water softener to eliminate the occurrence of rust stains and deposits. If surface stains have already accumulated, use Bust-a-Rust to remove them.
- Removes iron in water that makes drinking water taste and smell bad.
- Does not contain chlorine, phosphates or phosphoric acid.
Active Ingredients: Sodium Hydrosulfite, Sodium Metabisulfite