What is drain and sewer pipe root ingress?

This Catalyst video shows how roots can get into drain and sewer pipes, causing blockages and making some pipe faults worse.

Especially where pipes have already been displaced or cracked, roots can grow into pipes, which can be a valuable source of water and nutrients. The process is known as drainage pipe root ingress.

Tree root ingress can lead to drain and sewer pipe blockages, and can make drainage pipe faults worse. This can trigger surface water flooding or subsidence problems that result in an insurance claim by the property owner.