Arrived Monday for blockage and to run camera. After running camera found belly in line inside crawlspace. Gave customer estimate to replace sewer in crawlspace due to it being rotted out cast iron. Customer approved estimate. The original plan was to reroute outside but when doing new line outside we are 4 inches lower than old line we were going to tie onto. Customer is having HVAC company rework the duct work in crawlspace. We finished our part and they will work around our work. Rerouted sewer drain in crawlspace/ basement. Tied into existing sewer line. Installed 3 new clean outs throughout the basement. Tested system system is working with no issues or leaks.