All across the U.S., manholes are under attack. The enemy? Corrosion - a result of increasingly corrosive sewage in aging sewer systems that are further weakened by extended hold and travel times, as well as increased capacity demands. Fortunately, epoxy coatings designed to meet the immersion service needs of the wastewater industry can extend the life of manholes by 50 years or more while providing significant savings in downtime, labor and installation costs.