Customer reported mainline clog. Attempted to clear clog via clesnout in backyard but issue was over 100’ away and did not have enough length on my cable to reach clog. Installed a cleanout in backyard approximately 50’ away from original cleanout to allow us to finish snaking out towards city sewer. Was able to clear clog from new cleanout and ran camera to view condition of sewer main. After running camera I found several issues. One issue being that it appeared there was a large root intrusion in city main contributing to the clog, as well as there was a large root intrusion and break at saddle of city main where customers sewer connected. Strongly recommended repairing this section of piping to avoid future clogs