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Underground Hot Water Piping Corrosion and Leakage

Under-Slab Hot Water Piping Corrosion and Leaks

Corrosion and Leaks in a Solar Water Heater System

Contamination of Residential Plumbing Systems ("Blue Water")

Leakage in Stainless Steel Solar Collectors

A solar heating system equipment manufacturer was experiencing leakage in an expanded stainless steel collector. They hired APTECH to investigate the cause of the corrosion damage. Our investigation determined that the corrosion damage was associated with oxidation contamination resulting from the welding fabrication process in combination with specific domestic water supplies that contain relatively high concentrations of chlorides. We advised the client that the stainless steel alloy should be adequate for all domestic waters, provided that the fabrication oxidation was removed prior to use.

Satish Almaula		Plant failure and root cause analysis; process and design engineering analysis; process technology development and testing; plant engineering, operations, maintenance and safety management; plant and process control system management.

Philip Lindsay, P.E.		Corrosion failure analysis, metallurgy, piping systems, corrosion mitigation, materials selection.

Kimble Clark, Ph.D.		Failure analysis, heat transfer & thermodynamics, process plant equipment failures & explosions, fuel science, combustion, industrial fires and explosions.

Geoffrey Egan, Ph.D.		Engineering mechanics, welding engineering, stress and fatigue analysis, risk analysis, nondestructive examination, project management.