Return call for main sewer line dig from the main stack to septic tank. We dug the main line up with a mini excavator and by hand, it was 2 feet down and aproxamately 15ft long. Found a cast iron main sewer line connected with a fernco not bedded in concrete, to SDR that had separated due to the septic tank settling overtime. Installed new PVC pipe with a double Y clean out and tied all existing lines into the main stack with correct pitch. We bedded the new pipe with sand, then tested the new main line for good flow and drainage. We also concreted the holes we made for the new pipe through the house foundation and the septic tank. The line checked out so we back filled and tested the line after backfilling also. It had a great flow into the septic tank. We uncovered outlet of septic tank, opened up the tank to inspect the flow to the distribution box and found the line was clear and the box was good. Each leg of the septic field was flowing as it should. Customer is satisfied with the