Where we mention Pool Mate 1-Quart 4-Pack Concentrated Metal Out, Pool Metal Remover and Stain Preventer

• Why Is My Pool Still Green After Shocking?

  For metals and copper tint · Best for: Treating clear green water caused by oxidized copper after a pH swing

• Pool Metal Stains: How to Identify Iron, Copper, and Manganese and Remove Them Without Draining

  Best bulk sequestrant (4 x 1 qt for season-long prevention) · Best for: Season-long maintenance for pools with chronic metal-in-fill-water issues. 4-quart pack covers a typical 20k gal pool for the whole summer at the preventive dose. Cheaper per ounce than the Clorox quart.

• Pool Calcium Scale: How to Remove It and Stop It Coming Back

  Sequestrant for ongoing prevention · Best for: Holding calcium in solution between balancing doses — keeps CSI in the safe band