Technician Taylor arrived on scene to perform video inspection of client sewer line. Client authorized technician to begin inspection before she arrived. Technician access secondary clean out underneath kitchen sink and ran inspection from there. Technician video secondary line through main line under home and found no cause for concern. Technician did note that old cast iron was looking aged but clients home is on a slab. Technician informed client of findings including an offset found in the main line. Technician cleaned work area and pulled off.