Hi all, I am looking at this property hoping to buy. It has private sewer cross the whole backyard all the way to the end then connects to the sewer main. Diagram below. http://s21.postimg.org/yaumsrvif/sewer.jpg I guess the private sewer connecting the house to the sewer main is going to cause problem if I want to extend the house. My question is how much would it cost to re-run the private sewer so it can be less disruptive for extension and pool? Just after a rough estimation based on your experience. The block is an average sized block in Sydney. Thanks!