Water Smells Like Rotten Eggs - 8 Common Water Problems—and Their Cures - Bob Vila
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Problem: When hydrogen sulfide is present, water smells like rotten eggs or sulfur. This colorless gas is extremely corrosive to metal pipes, turning them black and eventually causing leaks.
Management: Multi-stage filtration is necessary to remove hydrogen sulfide, starting with chlorination, then a sedimentation and aeration filter, and finished with an activated carbon filter to remove excess chlorine.