What is the major cause of wastewater line stoppages?

The major cause of wastewater line stoppages is primarily attributed to roots and grease. Roots from trees and vegetation can infiltrate the sewer lines through small cracks or joints, leading to significant blockages over time. This can create a physical obstruction in the pipe, restricting flow and eventually causing backups.

Grease buildup is another critical factor. When cooking oils, fats, and grease are disposed of down sinks, they can accumulate in the pipes, solidifying and reducing the pipe’s diameter. This buildup can eventually lead to complete blockages, disrupting the normal flow of wastewater.

While other factors such as sand, rocks, frozen pipes, or insufficient slope can contribute to stoppages, they are not as common as the combination of roots and grease in typical wastewater systems. Understanding this, wastewater management often emphasizes the importance of regular maintenance and public education on proper disposal methods to mitigate these issues.