On 3-6-2024: I opened the floor and cleaned out removed pipe installed a new 4” PVC floor clean out, and cleaned sewer 75’ to the city main. Heavy roots throughout the space. Also measured sewer in preparation for lining. 3-7-2024: Inserted a four-foot spot repair liner and positioned it over the area just upstream of the city main where the pipe had dropped. Inserted a 4-6” liner through the newly installed inside clean-out extending approximately 70 feet downstream ending in the previously installed spot repair upstream of the city main. Reinstated the existing drain tile located just past the cast-to-clay connection. Backfilled hole with 3/4” stone and recentered concrete floor.