re: Adding new sewer drain concrete slab house

I happen to have a buddy who owns a small directional drilling business mostly doing fiber optic cabling and stuff like that. My neighbor was bitchen to him about a similar project but his was due to old collapsed clay pipes. Dude brought his rig over and directionally drilled the new line so they basically just used the existing concrete hole. It kinda blew my mind. Used exactly the right depth and fall to make it work like new.