Out of sight, out of mind. When a township in PA opened a line of manholes, they discovered heavy deterioration in these force main discharge manholes from the affects of hydrogen sulfide induced corrosion. Restoration of the six manholes included resurfacing using Sauereisen's F-121 RestoKrete Substrate ReSurfacer and corrosion protection using the No. 210RS SewerGard epoxy lining system at 1/8”. CTS inspected the manholes with the township engineer, provided material and contractor recommendations and monitored the progress of the project throughout the installation.
