Common Problems Solved by Trenchless Sewer Repair

The method of trenchless sewer repair is revolutionizing the way we address underground pipe issues, offering a minimally invasive alternative to traditional methods.

This innovative technique eliminates the need for extensive excavation, reducing both disruption and cost. Homeowners and municipalities alike benefit from this technique, which effectively resolves common problems such as pipe blockages, cracks, and leaks.

Sewer Repair

By using advanced technologies like pipe bursting and relining, this method restores the integrity of sewer systems with remarkable efficiency. 

What are the most common trenchless sewer operations?

Whether dealing with aging infrastructure or sudden damage, the trenchless method provides a reliable, sustainable solution that minimizes environmental impact and enhances the longevity of plumbing networks.

Here are some common troubles that can be efficiently solved by applying it:

1. Pipe blockages

One of the most frequent issues with sewer lines is blockages caused by debris, grease buildup, or invasive tree roots. Over time, these blockages can lead to slow drains, unpleasant odors, and even sewage backups.

Trenchless repair, particularly methods like hydro jetting and pipe bursting, can effectively clear these blockages. Hydro jetting uses high-pressure water to remove obstructions, while pipe bursting involves breaking the old pipe apart and simultaneously installing a new one, ensuring a clear and functional sewer line.

2. Cracked or broken pipes

Aging pipes are susceptible to cracking and breaking due to various factors such as ground movement, freeze-thaw cycles, and the natural degradation of materials. These cracks can cause leaks that contaminate the surrounding soil and water.

Methods like pipe lining, also known as cured-in-place pipe (CIPP) lining, address this problem by inserting a flexible liner coated with resin into the damaged pipe. The liner is then inflated and cured, creating a new, seamless pipe within the old one that is resistant to future cracks and leaks.

3. Corroded pipes

Pipes made from materials like cast iron or galvanized steel are prone to corrosion over time, leading to reduced water flow, leaks, and structural failure. Trenchless techniques are particularly effective in dealing with corrosion.

Pipe lining can be used to create a protective barrier inside the pipe, preventing further corrosion and extending the pipe’s lifespan. Additionally, pipe bursting can replace the entire length of a corroded pipe with a new, durable one made from modern materials like HDPE (high-density polyethylene).

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4. Offset pipes

Ground shifting, soil erosion, and improper installation can cause pipes to become misaligned or offset, disrupting the flow of wastewater and increasing the risk of leaks and blockages.

Traditional repair methods would require significant excavation to realign the pipes, but trenchless techniques offer a less invasive solution. By using pipe bursting or slip lining, the existing misaligned pipes can be replaced or reinforced without the need for major digging, ensuring proper alignment and flow.

Sewer Repair

5. Sewer line belly

A sewer line belly is a sagging section of the pipe where wastewater can accumulate, leading to frequent blockages and backups.

These sags are often caused by soil settling or improper installation. With methods like pipe bursting, which replaces the sagging section with a new pipe that has the correct slope, or pipe lining, which can reinforce the existing pipe and improve its structural integrity.

6. Invasive tree roots

Tree roots naturally seek out moisture and can infiltrate sewer lines through small cracks or joints, causing significant blockages and damage.

Traditional repair would involve digging up the affected area to remove the roots and repair the pipe. However, trenchless options, such as hydro jetting followed by pipe lining, can remove the roots and prevent their re-entry by creating a seamless, root-resistant barrier inside the pipe.

7. Collapsed sewer lines

A complete collapse of a sewer line is a severe problem that traditionally required extensive excavation and replacement. However, pipe bursting provides a more efficient solution. By breaking up the old, collapsed pipe and pulling through a new one, this technique restores functionality with minimal disruption to the surface above.

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