Detail of erosion on the front of the impeller blade. The coarse pitting on the surface of the blades led to a loss in pump efficiency and even to reduction in the mechanical strength of the blades.
Detail of erosion on the front of the impeller blade. The coarse pitting on the surface of the blades led to a loss in pump efficiency and even to reduction in the mechanical strength of the blades.

This three-part series of articles was first published in the World Pumps magazine. The series is presented here in its entirety.