In a WATERWORLD article, Jim McMahon writes: “By 2012, EPA regulations will require a higher level of compliance for disinfection byproducts (DBPs) in drinking water. This has prompted a number of water districts to install tank covers to reduce algae growth in process basins, launders and tube settlers….One of the more versatile cover designs is the retractable, structurally supported geomembrane cover system, which provides not only sunlight blockage to reduce algae growth, but facilitates easier access to water treatment processes for maintenance and repairs – a critical factor in systems like GAC contactors that require frequent maintenance.” Read it online.

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