Replace cast iron penetration from inside basement to outside wall in flower bed. Install a PVC clean out on sewer line at corner of house to make sure a new front porch can be installed. Provide free sewer scope after clean out installation We removed cast-iron and installed a new clean out in 4 inch PVC pipe outside. We then removed the remainder of the cast-iron inside the penetration, and connected it to the existing PVC all in 4 inch.