During our initial camera inspection we found root infiltration and build up in cast iron pipe. our technician recommended hydro jetting the entire line from the basement area at the front of the stack in the basement, and to the city main to clear the line of any scale or build up. Due to a build up of rust and debris our techs needed to use a Picote machine to scrape the interior of all rust. After the rust and debris is removed he then uses a high power water jet to push out the debris in the line and into the sewer. After this is complete the line is prepared for the liner to be installed. The technicians then installed a 4 inch liner from the excavated area in the basement to the sewer in the street. The liner is steam heated and becomes as hard at metal. Now the sewer line is guaranteed for 10 years not to break or crack.