The answer to 'my sewer repair smells bad' is that a foul odor coming from a sewer repair is often caused by a problem with the repair itself or ongoing issues in the sewer system. Common causes include improper sealing, blockages, or damage to the sewer line that allows sewer gases to escape. This can lead to unpleasant smells in and around your home.
If you've recently had a sewer repair done and it's now emitting a bad odor, the first step is to inspect the repair area. Look for any cracks, gaps, or openings that could be allowing sewer gases to vent. You may also want to check for any blockages or debris buildup in the sewer line. If you identify an issue with the repair, it's best to call a professional plumber to assess the problem and make the necessary fixes.