drænerør

Drænrør, also known as drainage pipes, are conduits used to collect and divert excess water from an area. They are commonly employed in construction and agriculture to manage groundwater and surface runoff, preventing waterlogging and its associated problems.

These pipes are typically made of perforated plastic, such as PVC or polyethylene, or sometimes clay. The perforations allow water to enter the pipe from the surrounding soil. Once inside, the water flows through the pipe to a designated outlet, which could be a ditch, a storm drain, a sump, or a soakaway. The diameter and spacing of the perforations, as well as the pipe's overall diameter, are determined by the specific drainage requirements of the site.

In agricultural settings, drænrør are installed beneath fields to improve soil aeration and fertility by removing excess moisture. This leads to healthier crops and increased yields. In urban environments and residential areas, they are crucial for foundation drainage, preventing basement flooding and structural damage caused by saturated ground. They are also used in landscaping to manage water around patios, driveways, and sports fields. The proper installation of drænrør is essential for their effectiveness, often involving a layer of gravel to filter out soil particles and prevent clogging.