Upon arrival customer stated that the main sewer line had a blockage between the clean out outside and the septic tank. Gave customer estimate to run flex shaft and camera. Customer approved estimate to run flex shaft and camera. I can the flex shaft out to the septic tank and back 3 times and was able to clear the blockage. When running the camera I noticed the line was still holding water due to the septic tank needed to be pumped. Customer stated that the septic tank has not been pumped for 3 years. Informed the customer he needs to call a septic tank company and get them to come out and pump the septic tank. Customer also did not want me to come inside and take picture of the water heater