An increase in the number of copper plumbing failures at Mound prompted a thorough analysis of the failed components. Most of the components were elbow joints. All of these parts exhibited the same type of accelerated deterioration. The failed parts were analyzed optically and by scanning electron microscopy. Water chemistry, solder, and soldering fluxes were evaluated to determine their possible roles in the accelerated attack. Cross-sectioning of the elbow joints revealed residual soldering flux and cutting burrs on the inside of the elbows. Water analysis showed Mound's water was rated as corrosive. Recommendations for improved workmanship and design are presented. …
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An increase in the number of copper plumbing failures at Mound prompted a thorough analysis of the failed components. Most of the components were elbow joints. All of these parts exhibited the same type of accelerated deterioration. The failed parts were analyzed optically and by scanning electron microscopy. Water chemistry, solder, and soldering fluxes were evaluated to determine their possible roles in the accelerated attack. Cross-sectioning of the elbow joints revealed residual soldering flux and cutting burrs on the inside of the elbows. Water analysis showed Mound's water was rated as corrosive. Recommendations for improved workmanship and design are presented. Testing of potable water at a regular basis was also recommended. 8 refs., 10 figs., 3 tabs.
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Schleitweiler, Patrick M. & Miller, Pamela S.Corrosion of copper in Mound's single-pass potable water systems,
report,
December 7, 1990;
United States.
(https://digital.library.unt.edu/ark:/67531/metadc1209515/:
accessed April 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.
