BioGuard Erase Iron Stain Remover for Swimming Pools
Remove iron stains from any pool wall or floor with BioGuard Erase Iron Stain Remover for Swimming Pools. Simple application, sprinkle on infected area and watch the stain disappear. Test the stain first to make sure it is an iron stain before using. Follow directions on the label before adding. May need more than one dose depending how old and how large the stain is.
Dosage: 2 lb per 12,000 gallons of water.