The Truth About Sewer Line Failures (and Why Every Buyer Should Get a Scope)

Published on 11 December 2025 at 13:06

A failing sewer line is one of the most expensive and frustrating surprises for homeowners. Unfortunately, you can’t see sewer issues during a walk-through. By the time symptoms appear inside the house, the line has already been deteriorating.

95% of the homes in Cincinnati that are older than 1980 have a sewer issue

Why Sewer Problems Are So Common

In older neighborhoods—especially those with clay or cast-iron pipes—problems develop naturally over time. Cincinnati’s older suburbs see this more than most.

Common Sewer Defects I See During Inspections

1. Root Intrusion

Tree roots are constantly searching for water and will enter any tiny crack in the line. Once inside, they spread and clog the pipe.

2. Bellies or Low Spots

This is where part of the sewer line sags. Waste sits in the belly, causing:

  • Backups

  • Foul odors

  • Repeated clogs

3. Cracked or Collapsed Pipes

Clay pipes can shift with soil movement. Cast iron corrodes over time. Plastic pipes can separate at joints if improperly installed.

4. Grease and Sludge Buildup

Even if the line is structurally sound, buildup can narrow the interior.

Signs of a Failing Sewer Line

You may notice:

  • Frequent clogs

  • Gurgling drains

  • Wet spots in the yard

  • Backups after heavy rain

Why Every Buyer Should Get a Sewer Scope

A sewer scope can reveal problems long before they become expensive repairs. It’s a low-cost test that can prevent a high-cost disaster.

Expert Tip: Even if sinks drain normally during the showing, the real problems usually show up during storms.

 

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