Sewer Line Belly & Low Spot Repair

A sewer line “belly” is a physical sag or low spot in your underground pipe where water and waste collect instead of flowing toward the city main. Because sewer systems rely on gravity, even a minor dip can cause “standing water,” which leads to the accumulation of sludge, grease, and debris. Sewer23™ provides expert sewer belly repair in West Bloomfield and throughout Metro Detroit, using precision diagnostics to re-establish the correct slope of your system.

What Causes a Sewer Line to Sag?

Sewer bellies are usually the result of shifting environment or poor original construction:

• Soil Erosion & Compaction: Leaking pipe joints can wash away the supporting soil, causing the pipe to sink into the void.
• Improper Installation: If the original trench wasn’t bedded with the correct materials (like pea stone or sand), the pipe will eventually settle unevenly.
• Ground Shifting: Michigan’s intense freeze-thaw cycles can cause the earth to move, putting immense pressure on buried lines.
• Tree Root Interference: Large roots can grow under a pipe and eventually push it upward or downward, disrupting the grade.

Our Slope Correction Process

Correcting a belly requires more than just replacing a pipe; it requires stabilizing the ground beneath it:

1. Digital Grade Mapping

We use camera equipment with built-in sensors to measure the exact degree of the slope. This allows us to determine exactly where the gravity flow fails.

2. Strategic Excavation

Unlike a collapsed line, a belly repair often requires a longer trench to “average out” the slope and ensure a smooth transition from the house to the street.

3. Proper Bedding & Compaction

To prevent the belly from returning, we use crushed stone or engineered fill to create a stable foundation for the new PVC pipe, ensuring it remains at a consistent 1/4-inch per foot grade.

4. Flow Verification

Once the new section is installed, we perform a final “flow test” under camera observation to ensure no standing water remains in the line before backfilling the trench.

The Sewer23™ Advantage

Repairing a sag in a sewer line is a precision job that requires an understanding of civil engineering and local soil types:

• Eliminate Repeat Costs: A belly repair is a “one-and-done” fix that ends the cycle of expensive annual drain cleanings.
• Licensed Professionals: We handle all necessary municipal permits and inspections for Oakland County.
• Transferable Warranty: Our structural repairs are backed by a 5-year warranty, adding value and peace of mind to your property.

SLOPE CORRECTION SPECIAL

$250 OFF Any Sectional Belly Repair

FREE Slope Evaluation with every main line camera inspection

Fix the Slope, Fix the Problem

Stop treating the symptoms and start fixing the cause. If you suspect your sewer line has a low spot or belly, contact the specialists at Sewer23™ for a definitive diagnosis. We provide honest, flat-rate estimates and the technical expertise to get your waste flowing in the right direction.

Call Sewer23™ at (248) 993-3423 to schedule your sewer belly evaluation today.