The answer to 'why is my sewer line' is that a sewer line can become clogged or blocked for several common reasons. The most frequent causes are tree root intrusion, buildup of debris and waste, and damage to the pipe from age or ground shifting.
Symptoms of a sewer line problem can include slow draining sinks or toilets, gurgling sounds, sewage backups, or unpleasant odors. If left untreated, a blocked sewer line can lead to significant water damage and unsanitary conditions in your home.