Over the past decades, metal cooling towers have become popular. Tower corrosion may occur in as little as 7 years depending upon water treatment and environmental conditions. Severe rusting to the point of distressed metal of the tower basin and support structure results. Corrosion causes water leaks and increases water consumption. Structural integrity of the tower itself is reduced and gradually performance deteriorates. Inevitably, corrosion makes it necessary to replace the equipment prematurely, often at a cost of tens of thousands of dollars and more.