Upon arrival, pre inspected line for back water valve, and condition of pipe, upon camera inspection and jetting to clear pipe walks and flush box, no evidence of bac water was found, used netter up steam on main lateral, and jetted to main city tap( 90 drop), camera inspection after jetting to verify no valve was installed and no immediate sewer issues were evident Pre and post videos available upon request Sewer box configuration is bull horn style, bottom entrance goes up stream, top entrance goes down stream crossing where valve or “flapper†would be present Recommended branch lines to be cleared within 1 year of lateral being jetted to maintain cleared condition of pipe No warranty on back ups or clogs due to no cabling or work done