Viemärikaivot

Viemärikaivot, known in English as manholes or inspection chambers, are essential components of underground sewage and stormwater drainage systems. They serve as access points for inspection, cleaning, and maintenance of the pipes. Typically constructed from concrete, brick, or precast plastic, viemärikaivot are installed at regular intervals along the sewer lines and at junctions where pipes change direction or size. Their primary function is to allow maintenance workers safe entry into the underground network to address blockages, perform repairs, or inspect the condition of the pipes.

The design of a viemärikaivo usually includes a circular or rectangular shaft that extends from the ground surface to the level of the sewer pipe. A heavy cover, often made of cast iron or ductile iron, seals the opening at ground level, preventing unauthorized access and preventing surface water from entering the system. The depth of a viemärikaivo can vary significantly depending on the depth of the drainage system. Proper installation and regular maintenance of viemärikaivot are crucial for the effective functioning and longevity of the entire wastewater infrastructure, preventing pollution and ensuring public health.