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Microbiologically Influenced Corrosion (MIC) in Automatic Sprinkler Systems

Posted by WSRB on December 17, 2012

Over the past several decades, microbiologically influenced corrosion (MIC) has been an increasingly frequent problem for owners of both wet and dry automatic sprinkler systems. MIC occurs when bacterial microbes accelerate the natural corrosion (rusting) of metal piping, causing pin holes, accumulation of sediment, and obstructions within the systems.  The presence of oxygen, metal, nutrient-rich water, and minerals within sprinkler systems creates a perfect environment for bacterial microbes to thrive. This can result in decreased water flow and even complete system failure due to blockage in the event of a fire.

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Topics: Automatic sprinkler systems, Inspections, insurance, MIC, Home Fire Protection