Snake kitchen sink line ( 1 1/2’’ PVC PIPE) galvanized pipe under the slab.. snake it 28’’ under k/s,run water didn’t drained....moved all my equipment to the roof. Run 63’ hit stoppage at 42’. . Didn’t pulled anything but black sludge. ...............Before I started from under the kitchen sink. I told custumer that the pipe was loose , found out the pipe was completely off from the join. Someone replaced the the wye with ( ABS PIPE GREY ). I told CUSTOMER I will repaired as courtesy