Here's why:
* Aggressive growth: Many tree roots, especially those of large, mature trees, are known for their aggressive growth and tendency to seek out water sources.
* Seeking moisture: Drainpipes, with their consistent flow of water, are attractive targets for tree roots. The roots will grow towards the pipe, seeking the readily available moisture.
* Penetration: Tree roots are strong and can penetrate through cracks in pipes or even through the pipe material itself.
* Blockage: Once the roots have entered the pipe, they can grow and multiply, eventually blocking the flow of water and causing a backup.
So, while trees themselves aren't the culprit, their root systems are responsible for the drainage problems.
