The Inspection Camera was unable to pass this point without risk of being stuck. As the trees in your yard send out roots to gather nutrients, these roots may encounter your sewer line. While sewer pipes may seem hardy and impenetrable, they are susceptible to persistent roots, particularly if your sewer line is older or made from less durable materials than modern sewer pipes. Clay tile and Orangeburg sewer pipes are the most susceptible pipe materials to tree root damage, but even concrete and PVC pipes can sustain damage under certain circumstances. Once the tree roots break into your sewer line, they cause two problems to ensue. First, the damaged portion of pipe allows sewage to leak out into your yard, causing issues such as standing water, spongy grass, and an unpleasant smell. Second, the tree roots can continue to grow up into the pipe as they absorb water, causing a partial or complete blockage of your sewer line that affects drainage inside your home and may even lead to a sewage backup. Thus, sewer line repair to address tree root invasion typically involves two steps: removing the roots via chemical or mechanical means, then repairing or replacing the section of damaged sewer pipe.