What Causes an Underground Drain to Collapse?
Underground drains can last for many years. However, several factors can weaken or damage the pipework over time.
Older drainage systems are particularly vulnerable to deterioration. For example, clay pipes can crack, move or become damaged as they age. Similarly, pitch fibre pipes can deteriorate and develop structural problems.
Ground movement can also put pressure on underground drains. As the surrounding ground shifts, pipe joints may move out of position or sections of pipework may become damaged. In some cases, heavy loads above the drainage system can also place additional pressure on the pipes.
Tree roots can cause further problems. Roots naturally grow towards sources of moisture and may enter pipes through existing cracks or weakened joints. Once inside, they can continue to grow. As a result, they may restrict the flow of wastewater or worsen existing damage.
Poor installation, previous repairs and accidental damage can also affect underground pipework. Therefore, it is important to identify the exact cause before choosing a repair method.
A professional CCTV drain survey can inspect the condition of the pipework and help determine the most suitable next step.
Reach out to us