CCTV inspection of buried sewer and stormwater pipes

CCTV inspection of buried sewer and stormwater pipes

CCTV inspection of buried pipes allows the real condition of sewer and stormwater networks to be assessed without opening trenches. It is essential for identifying sagging, cracks, open joints, infiltration, blockages or deformation inside the pipe.

At REVIPOX, this type of inspection is particularly important in older clay pipe systems, where we often find displaced joints, ground settlement and structural defects that affect flow and watertightness.

When this inspection is recommended

CCTV inspection is recommended when there are recurring blockages, backflow, bad odours, suspected leaks into the ground, surface settlement or signs of damage in the sewer or stormwater network.

It is also useful before deciding on repair, replacement or trenchless rehabilitation, as it confirms whether the pipe is still suitable for internal intervention.

Common problems in buried pipes

• Pipe sagging or deformation
• Open or displaced joints
• Cracks, fractures and loss of material
• Accumulation of sand, sludge or roots
• Water infiltration into the pipe
• Loss of watertightness to the surrounding ground

Clay pipes and older networks

Many older buried drainage systems were built with clay pipes. Although this material can last for many years, the joints, ground movement and settlement over time can create important discontinuities.

When sagging or significant misalignment is present, CCTV inspection helps determine whether the right solution is cleaning, localised repair, CIPP rehabilitation or, in more serious cases, partial pipe replacement.

Diagnosis before rehabilitation

The purpose of the inspection is not just to “see the pipe”. It is to make the right technical decision. Before proposing CIPP lining or another trenchless solution, we assess the pipe’s structural condition, continuity, access, obstructions and real feasibility of rehabilitation.

When the pipe still has sufficient geometry, internal rehabilitation can avoid extensive excavation. When collapse or severe sagging is present, the inspection helps define the affected area and avoid blind decisions.

Contact REVIPOX

If you suspect a problem in a buried sewer or stormwater pipe, CCTV inspection is the first step to understand the real condition of the network. REVIPOX provides CCTV diagnosis and helps define the most suitable solution for each section.