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How to Repair a Sewer Line Under a Slab

10November 2023

How to Repair a Sewer Line Under a Slab: Navigating a Complex Plumbing Challenge

Introduction:

Discovering that your sewer line under a concrete slab needs repair can be daunting. It’s a complex task that requires precise diagnosis and effective solutions. Whether caused by age, tree roots, or shifting ground, repairing a sewer line under a slab demands a careful approach to avoid extensive damage and ensure lasting results.

 

  1. Identifying the Problem:
    • Symptoms: Slow drains, sewage backups, and unexplained odors can signal a problem.
    • Professional Inspection: Use a camera inspection to accurately locate the issue.
  2. Evaluating Repair Options:
    • Pipe Lining: This less invasive method involves inserting a new liner inside the existing pipe, which then hardens and seals any breaks or leaks.
    • Pipe Bursting: A method where a new pipe is pulled through the old one, breaking the old pipe outward and replacing it with a new one.
  3. The Traditional Approach:
    • Excavation: In some cases, direct access to the pipe by breaking through the slab may be necessary.
    • Cost and Time: This method is often more expensive and time-consuming, involving significant excavation and restoration work.
  4. Preparing for Repairs:
    • Hiring Professionals: Due to the complexity, it’s advisable to hire experienced plumbing professionals.
    • Relocation: Temporarily relocate if the repair process disrupts essential water usage.
  5. The Repair Process:
    • Ensuring Safety: Turn off water and sewer lines during the repair to prevent accidents.
    • Minimizing Damage: Use trenchless repair methods where possible to minimize damage to your property.
  6. Post-Repair Considerations:
    • Inspection: Have a final inspection to ensure the repair is successful.
    • Restoration: Repair any damage to the slab, flooring, and landscaping.

Conclusion:

Repairing a sewer line under a slab is a complex task that requires professional intervention. Understanding the problem and choosing the right repair method are crucial for a successful fix. Always prioritize safety and the integrity of your property throughout the process.