Sorry to start out with this question. I went to a customers home. Washer drain.. classic. Turns out sewer. He's on slab. No clean out I could find. Run from roof K-50. Tell helper probe it listen. Can't clear it can't hear it. Alright dig here. Bed rock and bricks. brick not a problem, But bedrock at about 2.5' water on it and everything. Not sewer water. Pulled tiolet in back of house water standing of course. Ran from there. No chance for K-1500 C cutter. Straight head little curve, got it. Big bill.>> Next week call back. Been running washer all day backing up. Takes a large amount of water back up. Washer is on opposite side of house with garage a small bath. Diagnose. Back bath is fine.Sewer branch needs cleaned. Pull toilet in small bath. Run and works. Hell of a call back. Needs clean-outs. Made drawing of layout which he took to head of HOA nextdoor. Guy has same set up and confirmed it. Says no clean outs in this area. Though I already knew. In one big bill. One callback. What would you do, or have done different. How do Ifind these lines. I have been to this home before, and before all this happened.