Stains + Spots


Stain + Spots – blue or green, red or orange, black or brown stains – hard water


Blue or Green Stain – copper + selenium – corroding pipes – caused by acidic water

  • Harmful Effects
    • Acute copper poisoning: nausea, vomiting, diarrhea, gastrointestinal illness, abdominal & muscle pain.
    • Severe cases of copper poisoning have led to anemia, liver poisoning, kidney failure & and even death
    • Hair & fingernail changes
    • Damage to the peripheral nervous system
  • Treatment Options


Red or Orange Stain – staining of fixtures and clothes, and give the water a bitter or rusty taste – caused by iron


Brown Stain – caused by manganese – sour, asphaltic or greasy flavor to water

  • Harmful Effects
    • Diarrhea
    • Upset Stomach
    • Discoloration of sinks as well as clothing
  • Treatment Options


Black Stain – caused by iron & sulfur or magnesium




Blue Staining caused by corrosion of Copper Pipes
black stain
Iron Staining
Water softener, a sediment filter and an iron breaker sulfur breaker
Insta-Hot and reverse osmosis

Contact National Water Service today for a free basic water quality test!