Your main sewer line is the lifeline of your home's drainage system. When it gets clogged, the consequences can be messy and costly. The good news? There are warning signs you can catch early — before the damage spreads.

1. Multiple Drains Are Backed Up
If more than one drain is acting up (like your shower, sink, and toilet), it usually means the issue is deeper than a single pipe. That’s a red flag for a main line clog.

2. Gurgling Sounds from Toilets
Hear bubbling or gurgling noises after flushing? That’s trapped air escaping due to blockage in the line.

3. Water Backing Up in Unusual Places
Flush the toilet and water comes up in your bathtub? Run your sink and the toilet gurgles? These cross-reactions are often caused by main sewer line issues.

4. Sewage Smells Indoors or Outdoors
A strong, unpleasant odor in your home or yard could indicate a broken or clogged main sewer pipe.

5. Soggy Patches in the Yard
Notice unusually wet or sunken spots in your lawn? That could mean sewage is leaking underground from a damaged line.

Don’t Wait — Get It Checked
Main sewer line clogs require professional inspection and often camera diagnostics. If you’re experiencing any of these signs, call our team at Black Diamond Plumbing & Drain — we’re available 24/7 for fast, reliable help.