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HISTORICAL DOCUMENT. Material selection, application, and inspection of pipeline liquid-epoxy coatings used for the repair of previously coated pipelines and for coating field joints externally.
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Watermain failures are not often recognized as corrosion but are usually referred to merely as “watermain breaks” because watermain pipe appears sound prior to failure. Some of the causes of watermain breaks are poor design, improper installation, surge or water hammer, soil movement, manufacturing defects, impact, internal corrosion, and external corrosion. Figure 1 shows some of the possible causes of the DI pipe.