Came out for plumbing eval homeowner had backed up sewer line previously had Roto-Rooter replace all of the plumbing underneath the house with PVC however they did not do the line leading to the city the line leading to the city appears to be short sections of concrete piping with roots coming through each section there is also a good distance where there is a belly and one in particular spot where there is heavy heavy root growth setting up an additional visit complimentary for the plumbing manager to meet me back out here and offer a permanent solution