I am building a new home approx 2000 sq ft. After receiving multiple bids, I have decided to do my own plumbing. I am a DIY guy and figured I could handle this. I have watched many videos and read numerous articles about installation. I want to make sure I have a solid design, from a licensed professional before I start digging. I have a set of blue prints if I could find a licensed plumber to help me design, I can email upon notice. I only need design for waste water only. Thanks in advance.