Team Rooter technician went for a Main Line Back up. Tunneled in towards steps to reach pipe under the steps.  One hole will be at property line digging 7ft down and second will be where two mainlines meet digging 3.5ft in center of grass. Used these two holes to invert three liners going upstream from property line and downstream. Downstream will go down up to city lateral. From second hope will invert liner towards steps up to clean out. Work comes with 25yr warranty. Parts and labor included.