4 Ways to Prevent Metal Stains in Your Pool

Test your fill water before adding it Well water is notorious for iron, which causes stains. Know what you are putting in your pool.

Avoid copper-based algaecides These products stain more than they treat. Use a non-metal alternative instead.

Add a metal sequestrant every time you top off Products like Metal Magic bind to metals so they cannot stain. This is cheap insurance.

Keep pH in the mid-7s Low pH dissolves metals and makes staining worse. Stable pH prevents the problem.