The answer to 'sewer repair not working' is that there can be several common causes, including a blockage in the sewer line, a broken or cracked pipe, tree root intrusion, or a problem with the septic system. Symptoms may include slow draining sinks and tubs, gurgling noises, or sewage backups.
In many cases, the problem can be resolved with a professional sewer line inspection and cleaning. However, more extensive repairs like pipe replacement or septic system work may be required. It's best to call in a licensed plumber to diagnose and fix the issue, as improper DIY sewer repairs can lead to further damage or safety hazards.