Which has the deepest, most invasive roots, a 30-foot maple tree or 7-foot cedar hedges? We had tree roots in our sewer lines and were told they’ll continue to grow. We dug down 6 feet and found hair roots and a few roots 1 inch in diameter.
Root intrusion into drainpipes keeps a plumber friend of mine very busy replacing broken sewer lines.
The sewer pipes used in new home construction for the last 20 years or so are made of black plastic pipe put together...