Responded to a service call for a main sewer line blockage causing slow drainage and backups. Performed a full main line auger service to clear the obstruction and restore proper flow through the system. Pulled the affected toilet to access the drain line and inspect for additional blockage. After clearing the line, installed a new wax ring, reset the toilet, secured bolts, and tested for proper flush and seal. Verified no leaks and confirmed normal drainage before completing the job.