Customer called us out for a main line blockage that was causing the toilet pipe to leak into the basement. I tested the toilet and saw that it was leaking into the joints of the piping as well. I then checked the clean out outside and found that it was holding water. I recommended running a cable machine through the clean out to clear the blockage. Customer agreed. I ran the machine down the line successfully clearing the blockage. I also scheduled a sewer supervisor to come out tomorrow 8-11 am. I cleaned up the yard of most of the sewage.