Signs You May Have a Main Sewer Line Clog

Multiple Drains Backing Up Together

If your shower backs up when you flush a toilet, or your kitchen sink gurgles when you run the washing machine, the blockage is likely past the individual fixture lines — somewhere in the main sewer line.

Gurgling Toilets

When you flush, water normally rushes out cleanly. If you hear gurgling or see bubbles in nearby fixtures, air is being pushed back through the system because something is blocking the main line.

Sewage Odor

A persistent sewer smell inside or around your home — especially near floor drains, the cleanout, or in the yard — is not normal. It often means waste isn't moving properly.

Yard Clues

A patch of unusually green grass, a soggy spot, or a sunken area along the sewer line route can indicate a leaking or broken sewer line underground.

What's Probably Causing It

In Santa Rosa's older neighborhoods, root intrusion into clay or cast iron sewer lines is one of the most common causes. Other causes include grease buildup, foreign objects, pipe bellies (sagging sections), and broken pipe segments.

What Comes Next

A camera inspection is usually the most efficient way to diagnose the issue. From there, options range from hydro-jetting to spot repair to trenchless lining or full sewer replacement. A local plumbing provider can walk through the options after seeing the inspection.

Frequently Asked Questions

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