Effective Against: Calcium, cobalt, copper, iron, lead, manganese, nickel, and silver.
Prevents: Discoloration of pool water due to iron, calcium, manganese, copper, and other metals and minerals.
Helps Prevent: Rust, stains, and scale build-up. An excellent general-purpose sequestrant.
Application: Use for all pool openings and closings. Apply throughout the season as needed.
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