Pentair iron filter system with manganese greensand and potassium permanganate regeneration tackles rust stains
https://www.softprowatersystems.com/pages/gallons-per-minute-water-softener-secret
Pentair iron filter system with manganese greensand and potassium permanganate regeneration tackles rust stains, sulfur odor, and manganese; includes contact tank, pressure gauge, and 115V timer for reliable oxidation-reduction.