Brown, yellow or rust-coloured water is a common issue in private wells and some municipal water systems. The discoloration is often caused by iron, manganese, humic substances or corrosion from aging pipes. In some cases the colour is visible immediately, while in others it develops after the water has been exposed to air.
Common Causes
- Iron in groundwater or well water
- Manganese
- Humic substances and organic matter
- Corrosion from ageing pipes or installations
- Particles from the water source
Common Symptoms
- Brown or yellow water
- Rust-coloured deposits
- Staining of laundry and sanitary fixtures
- Deposits in pipes and fixtures
- Metallic taste
Common Treatment Methods
- Water Analysis
- Aeration and Degassing
- Iron and Manganese Filters
- Sand and Multimedia Filters
- Ozone
- Activated Carbon
Example Treatment Trains
Well Water
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Aeration
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Iron Filter
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UV Disinfection
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Drinking Water
Water
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Sand Filtration
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Ozone
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Activated Carbon
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UV Disinfection
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Drinking Water
Brown or yellow water can have multiple causes that require different treatment approaches. It is therefore often difficult to select the correct treatment solution based solely on the colour of the water. A water analysis combined with guidance from a qualified water treatment professional is normally recommended before investing in water treatment equipment.