- Obstruction
- Roots within a drainage run
- Cleaning objective
- Restore the route and expose the entry point
- Separate issue
- Repair of the defect that allowed root ingress
- Evidence
- CCTV before and after removal
Root ingress and pipe defects
Roots can restrict or stop flow, but clearing them and repairing the drain are separate jobs. A CCTV survey can show the apparent entry point and visible defects in joints, pipe sections or earlier repairs. Removing the root mass does not seal the opening.
The roots may also hide damage or further growth behind the point the camera can reach. That uncertainty matters when choosing the cutting method and planning how the removed material will be recovered.
Choosing root-removal equipment
Tool choice depends on pipe diameter, construction, access and condition. Existing liners and repairs also matter, so a generic pressure or cutter setting is not enough to decide what is suitable for a particular drain.
A damaged or heavily restricted pipe is more vulnerable than a sound, open run. The condition can only be confirmed progressively as the obstruction is removed and the pipe becomes visible.
Recovery and CCTV after cleaning
Cut roots and loose debris should be recovered rather than sent further downstream. A follow-up CCTV survey can then record the opened route, visible entry points and any defects that may need repair.
Water jetting and powered cutting equipment require competent operators and controls that keep other people clear of the danger area. The detailed method and safety controls have to suit the equipment and access on the job.
Repairing the entry point
Once the roots are removed, the exposed defect can be assessed for repair. The appropriate option depends on the pipe and the defect itself; if the entry point is left open, roots may return.