What Are the Signs of a Damaged Sewer Line?

Written by Steven Shipler, Texas Licensed Master Plumber, Responsible Master Plumber (RMP), MBA, and host of The 4 Guys Education on YouTube.

If you are asking, “What are the signs of a damaged sewer line?”, you are probably seeing something that does not feel right: slow drains, sewer odor, water backing up, a gurgling toilet, a wet spot in the yard, or repeated clogs.

A damaged sewer line can be difficult to confirm from the surface because most of the pipe is underground. The line may run under the yard, driveway, sidewalk, alley, landscaping, or concrete slab. That is why a sewer camera inspection is often the best way to see what is happening inside the pipe.

The Sewer Inspection Company provides sewer camera inspections, buyer sewer scopes, under-slab sewer evaluations, cast iron sewer inspections, drain diagnostics, sewer locating, and Master Plumber review throughout Plano, Frisco, Allen, McKinney, Richardson, North Dallas, Carrollton, Addison, Las Colinas, Irving, Coppell, and surrounding Dallas-Fort Worth areas.

The warning signs matter, but the sewer camera gives you evidence.

Seeing Sewer Line Warning Signs?

Schedule a sewer camera inspection before a small drain problem turns into a major sewer repair.

Call Now: 972-333-5448

Know What’s Underground, Before You Buy.

1. Multiple Drains Are Slow

One slow drain may be a localized clog. But when multiple drains are slow, especially toilets, tubs, showers, and floor drains, the problem may be deeper in the sewer system.

Multiple slow drains can point to roots, a belly in the sewer line, heavy cast iron scale, grease buildup, an offset, or a main sewer obstruction.

2. Toilets Gurgle or Bubble

Gurgling toilets can happen when air is trapped or pulled through the drain system. If you hear bubbling when the washing machine drains, shower runs, or another toilet flushes, the sewer line may not be draining properly.

3. Water Backs Up Into a Tub or Shower

Sewer water backing up into a bathtub or shower is one of the strongest signs of a sewer line problem. Tubs and showers are often lower fixtures, so they may show backup symptoms before sinks or toilets.

Warning

If wastewater is backing up into a tub, shower, or floor drain, do not keep running water. Schedule inspection and drain diagnostics immediately.

Call The Sewer Inspection Company: 972-333-5448

4. Sewer Odor Inside or Outside the Home

Sewer odor can come from dry traps, venting issues, damaged seals, or sewer line problems. If the smell is persistent, strong, or appears near a cleanout, yard area, crawlspace, or bathroom, it should be investigated.

5. Cleanout Overflow

If sewage or dirty water is coming out of an exterior cleanout, the sewer line may be blocked downstream. This can happen from roots, debris, a broken pipe, offset, sewer belly, or collapsed section.

6. Wet Spots, Soft Soil, or Unusual Grass Growth

A leaking sewer line may create wet soil, soft areas, odors, or unusually green grass. These signs do not prove a sewer break by themselves, but they are strong reasons to inspect.

7. Repeated Drain Cleaning

If the same line keeps clogging, the problem may not be the clog itself. The real problem may be the pipe condition. Roots, bellies, offsets, scale, and broken pipe can cause repeated blockages.

8. Older Home With Cast Iron or Clay Pipe

Older homes may have cast iron or clay sewer piping. These materials can still drain while having corrosion, scale, separations, root intrusion, cracks, and standing water.

Learn more here: Cast Iron Sewer Pipe Inspection.

9. Foundation Movement or Recent Foundation Repair

Foundation movement can affect underground plumbing. If a home has foundation repair history, buyers and homeowners should consider sewer camera inspection and plumbing evaluation.

What Can a Sewer Camera Inspection Find?

A sewer camera inspection may find:

Roots
Standing water
Sewer bellies
Offsets
Pipe separations
Broken pipe
Collapsed pipe
Cast iron deterioration
Clay pipe separation
Previous repairs
Under-slab sewer concerns

Sewer Inspection Videos: See What Damage Can Look Like

These sewer inspection videos show why a sewer camera inspection is so important. A home can look normal above ground while the underground sewer line has hidden damage.

Sewer Inspection Video 1

Sewer Inspection Video 2

Do Not Ignore Sewer Warning Signs

If you see signs of a damaged sewer line in Plano, Frisco, Allen, McKinney, Richardson, North Dallas, Las Colinas, Irving, Carrollton, Addison, or Coppell, schedule a sewer camera inspection.

Call Now: 972-333-5448

Final Answer: What Are the Signs of a Damaged Sewer Line?

Common signs of a damaged sewer line include multiple slow drains, gurgling toilets, sewage backing up into tubs or showers, sewer odor, cleanout overflow, wet spots, repeated clogs, older cast iron pipe, and foundation movement.

The best next step is a sewer camera inspection to see what is happening underground.

Call The Sewer Inspection Company today at 972-333-5448.

Helpful Internal Links

FAQs

What are the signs of a damaged sewer line?

Signs may include slow drains, gurgling toilets, sewer odor, backups, cleanout overflow, wet yard areas, repeated clogs, and multiple fixtures draining poorly.

Can a sewer line be damaged even if drains still work?

Yes. A sewer line can still drain while having roots, scale, bellies, offsets, standing water, or pipe separations.

How do I confirm sewer line damage?

A sewer camera inspection is one of the best ways to confirm visible underground sewer line problems.