The answer to 'sewer line overflowing' is a clogged or blocked sewer line. This is a common plumbing problem that can be caused by several issues, such as tree roots growing into the pipe, buildup of debris and waste, or a break in the sewer line.
Some common symptoms of a sewer line overflow include water backing up in sinks, tubs, or toilets, foul odors coming from drains, and sewage bubbling up from the ground around the home. If you notice any of these signs, it's important to address the issue quickly to prevent further damage and potential health hazards.