A city's infrastructure is expensive to build and to maintain. Cathodic protection of aging watermains is claimed to add about 15 years of life to the system. Watermains corrode, crack, pit and scale and eventually fail.
To slow this progression, crews have fanned out across the city to connect sacrificial anodes to aging ductile iron watermains. The attached anodes will corrode rather than the watermains to which they are attached.
The huge tube between the men on the right and the truck contains a drill that is creating a deep hole to access the watermain and to hold the sacrificial anode equipment.
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