8 Signs Your Sewer Line Is Failing (and Why North Texas Clay Makes It Worse)

By the licensed master plumbers at Honest Choice Plumbing · TX Master Plumber License M-44120 · Published October 1, 2026

Your main sewer line carries everything from your house to the city sewer or septic system. When it starts failing, the signs show up inside the house first.

8 warning signs

  1. Gurgling toilets or drains, especially when another fixture is used
  2. Backups in the lowest drain, like a tub, shower, or floor drain
  3. Several slow drains at once, not just one sink
  4. Sewer smell inside the house or in the yard
  5. A soggy or extra-green patch in the yard along the sewer line
  6. Needing the main line cleaned more than once a year
  7. Water backing up when the washing machine drains
  8. Pests like roaches coming up through drains

Why North Texas is hard on sewer lines

Much of North Texas sits on expansive clay soil. It swells when wet and shrinks during droughts. That constant movement can crack pipes, separate joints, and create sags where waste collects. Add tree roots searching for water during dry summers, and sewer lines take a beating.

Repair or repipe?

A camera inspection shows the actual condition of the line:

  • One damaged spot on an otherwise solid line: repair that section.
  • Damage in several places, or old cast iron or clay pipe throughout: sewer line repiping, meaning replacing the line, is usually the better long-term value.

Sewer line repiping is our specialty.

Frequently Asked Questions

How do I know if my sewer line is broken?

Common signs are gurgling, backups in low drains, multiple slow drains, sewer smells, and soggy spots in the yard. A camera inspection confirms it.

What does sewer line repiping mean?

It means replacing the sewer line, usually old cast iron or clay, with new pipe, instead of patching one spot at a time.

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