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As this photo of some removed jacket beside a pipe sample shows, it is stiff, tough stuff. This pipe coating had been used in the oil industry since the sixties. The coating was so complete they cathodically protect kilometres of pipe with each anode bed. We get about 100m of protection out of each magnesium anode in contrast to 10m with bare DI, because there are so few spots that can leak electrons.

© Calgary Waterworks, 2000 - copyright assigned to AWWA, 2001