Customer has 4 inch cast-iron line that is badly scaling on inside of pipe causing blockage attempted to clear line in various different ways, but was unable to clear. Camera line to determine severity of pipe, suggested to replace remaining section of cast-iron as parts of the house are already PVC. Will charge for today’s work. Cost of today will move into job for Monday. We’ll return Monday to replace approximately 40 to 50 feet of cast-iron piping.