COLOR OF STAIN | POSSIBLE CAUSE | TREATMENT OPTIONS |
|---|---|---|
White, gray Rust, orange, yellow Black, brown Blue, green Pink | Calcium hardness Alkalinity Total Dissolved Solids Iron Corrosion iron pipes Manganese Iron bacteria Hydrogen sulfide Tannins, humic acid Corrosion copper pipes Airborne bacteria - - | Water softening Deionization, de-alkalizers Reverse Osmosis Iron filter Corrosion control, acid neutralizer Greensand filter, chlorination followed by filtration Chlorination or ozone, followed by filtration Chlorination or ozone, followed by filtration Tannin filter, chlorination followed by filtration Corrosion control, acid neutralizer Clean sinks, fixtures (not a water quality issue) - |
