Customer called about main line stoppage. Ran washing machine and it backed up into shower. Will cable from roof vents and run camera. Will give further recommendations. Ran cable and camera from roof vent stack. Cast iron pipes under home have heavy buildup and cracks along bottom of pipe. Recommend a hydroscrub to clean pipes and determine if they are eligible for pipe lining. -pulled each toilet in house -saw cut and break up concrete in front of left side windows to access cast iron pipe. -cut out 4 foot section of clay pipe -hydroscrub from each toilet to open section of pipe -install cleanout and camera line again -give further recommendations We will replace concrete we remove. We will remove charges for cable. We will also include 1 free cable if a backup occurs before we return for hydroscrub.