If you want to see a lot of heavily corroded concrete and steel in one place, peak inside a wastewater digester. Wait until it’s empty, though, a digester is where the solids go when you flush.
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With the help of some anaerobic bacteria and heat, the digester breaks down the waste, but the contents and the process also corrode the huge containment vessels.
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Southern Industrial Linings, Inc. got the call and after a thorough cleaning, sprayed the interior surfaces with a tough, caustic-resistant polyurethane lining good for millions of flushes into the future.
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