Technician arrived and used sanitary sewer camera to Visually see where sewer from toilet exits home. Sanitary sewer from toilet leaves house through the same wall toilet sits against. Estimate will include concrete break up from adjacent wall under tub to toilet wall. New waste and overflow, new tub drain waste piping to connect to vertical waste line catching toilet. Removal of spoils and replacement of concrete floor. - looked at 2nd floor hall bath tub that is leaking at the overflow gasket. Tightened over plate down since it was loose. New gasket is going to be needed to resolve leak when water hits the overflow plate.