Ecowater Europe
Hydrogen Sulphide / Bacterial Contamination
Water has a rotten egg (sulphur) smell despite softening
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Hydrogen sulphide in raw water, Bacterial growth in resin bed or plumbing, Stagnant water in rarely used lines, No disinfection of system
How to Fix / Troubleshooting
Safety: Odorous water may indicate contamination; consider using bottled water for drinking until resolved.
- Identify source: Test both raw and softened water. If smell is present in raw water, the softener alone cannot remove it.
- Shock disinfection: Perform a system disinfection using an approved disinfectant (e.g., chlorine) following Ecowater guidelines to sanitize the resin tank and plumbing.
- Flush lines: Run all taps for several minutes to clear stagnant water.
- Install sulphur treatment: If hydrogen sulphide is present in the source, consider an Ecowater sulphur filter or aeration system upstream.
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Repair Difficulty
Medium
3/5
Required Part
Ecowater resin tank (for disinfection) / external sulphur filter
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