Pool Mate Metal Free Metal Remover 2-Pack 1-Quart | Concentrated Sequestrant for Iron & Copper Stain Prevention

Pool Mate Metal Free is a concentrated liquid sequestrant that removes and prevents metal staining and discoloration in pools caused by iron, copper, manganese and other metals.

Whether you’re filling a pool from a well, troubleshooting discolored water, or protecting pool surfaces and equipment during the season, this concentrated formula binds dissolved metals and keeps them from oxidizing into stains. The two 1-quart bottles provide treatment for routine maintenance and corrective use, helping preserve clear water and reduce unsightly staining on plaster, vinyl and metal fittings.

How do I use Metal Free when filling a new or drained pool?

For initial fills or after draining, add Metal Free as the pool fills and before adding chlorine. Use one quart for every 10,000 gallons of pool water to chelate metals in the supply and minimize the chance of staining.

• Add while filling and prior to chlorination.
• Dosage: 1 quart per 10,000 gallons.
• Circulate water after dosing to distribute the sequestrant.

What steps fix a pool that’s already discolored by metals?

Correcting colored water requires stopping chlorination, lowering pH to re-dissolve metals, treating with Metal Free, and circulating until clear. After the metals are sequestered and the water clears, restore pH and recommence normal sanitization before swimming.

• Close the pool and run the filter pump continuously.
• Allow chlorine to fall to zero, then lower pH to about 6.8.
• Add 1 quart per 10,000 gallons and circulate overnight or until clarity returns.
• Rebalance pH to 7.2–7.8 and resume standard chlorination (1.0–3.0 ppm) before swimming.

How often should I add Metal Free for routine maintenance?

To protect against metal carryover from backwashing, splash-out or fresh water additions, add Metal Free monthly at a lower maintenance rate. This helps keep metals sequestered and prevents gradual staining and scale buildup on surfaces and equipment.

• Maintenance dose: 1 quart per 20,000 gallons, once each month.
• Re-dose after heavy rainfall, major water top-ups, or after substantial backwashing.
• Use seasonally during openings and closings as a preventative measure.

What metals does Pool Mate Metal Free target and what does it protect?

Metal Free targets a broad range of dissolved metals that commonly cause staining and discoloration. By binding these minerals, it helps protect pool plaster, vinyl liners, metal hardware and plumbing from rust, stains and scale formation.

• Effective against iron, copper, manganese, calcium, lead, nickel, cobalt and silver.
• Helps prevent rust stains on fixtures and walls.
• Reduces scale formation linked to mineral deposits.

Who is this for: Pool Mate Metal Free 1-Quart 2-Pack is designed for pool owners, service technicians and property managers who want a reliable sequestrant to prevent and remedy metal-related staining. It’s especially useful for pools filled from well water or municipal sources with known mineral content, and for anyone seeking routine protection of pool surfaces and plumbing throughout the swim season.

Product features:

• 1 quart per 10,000 gallons for initial treatment
• Removes and helps prevent iron, copper, manganese and other metals
• General-purpose sequestrant that protects plumbing, walls and equipment
• Use at openings, closings and periodically during the season

Usage note: Follow label directions for safe handling and exact dosing. For corrective treatments, follow the multi-step process of reducing chlorine, lowering pH, treating with Metal Free, circulating until clear, then rebalancing pH and sanitizers before allowing swimmers back into the pool.