BioGuard Pool Magnet Plus, 1 Quart, Concentrated Formula, Metal Stain Preventer, Works Quickly & Easy to Apply Effective Pool Maintenance

My well water has a lot of metals in it. When I fill the pool I use an RV water filter and to get the metal out I use this product. You run the filter for 24 hours then when you backwash the water will look like rust. https://a.co/d/04ilmc2P