How do tree roots get into pipes?

Tree roots grow through trenches dug for plumbing pipes.

When plumbers excavate a trench in virgin soil to lay our pipelines to take the waste water from your home, we till the soil.

The simple method of excavating the soil with a shovel or even a mechanical excavator like a backhoe actually breaks up the soil.

See the tree in our attached pic?

Its root system will be able to grow through the trench looking for weakness in the pipe line.

After we complete our excavations and lay the pipes in the trenches, we back fill the trench, putting the excavated soils back.

Sometimes we water in the soil and quite often use a compactor to help with the back fill process.

Excavations are often back filled with an aggregate like blue metal gravel.

The back filled trench is never as compact as the virgin soil.

It provides the roots of nearby trees a much easier path to “wander” along in their search for water and nutrients.

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