There are many ways in which pipes and manholes can develop leaks, and many ways to fix those leaks when they occur. Here are some of the latest innovations in grouts, sealants and related equipment offered by industry manufacturers.Layering of resinsSpectraShield from CCI Spectrum Inc. is a systematic layering of polymer resins designed to rehabilitate and protect manholes, pipes and other structures. The product, which has a design life of 100 years, stops groundwater infiltration and prevents corrosion. It can be installed in any shape or configuration. A typical 7-foot-deep manhole can be completed in about one hour. 904/268-4951; www.spectrashield.com.High-volume
