It is very important when you move to a new house is to check the hidden problems. Sometimes are hard to find, sometimes those are hidden by the previous homeowner. All those are very painful and you can fill them in your pocket. But some of them you can prevent to rise like a nightmare in your face. One of them is to check before you sign up the contract for new house the sewer main line. Few hundreds dollar can save thousands most of the time. Don't forget to call a plumber, your plumber not somebody else plumber, with good sewer drain service skills and let him check the sewer with camera. Be smart, don't listen the neighbor!
P.S. Today we spent 4 hrs to open a sewer main line for a house where probably last cleaning has been done in ice age. We make it and now everything is OK.