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Model: GWLDR209 160mm Perforated Land Drain x 50m Coil Land Drain is used to cure waterlogged areas in gardens or other landscaped areas such as sports fields. The perforated pipe allows water to enter through the small holes. In construction, Land Drain is used to remove surface water from around buildings to prevent flooding. Without this in built up areas, standing water can increase the static load on underground structures and retaining walls - causing damage over time. Installing land drain to remove the excess water relieves this pressure. Our products are a single wall, perforated land drain pipe , which is used as a collection drain for the removal of excess surface water to a suitable collection point. Our land drain is not suitable as a dispersal drain All of our land drain sizes are sold by external diameter. It is recommended to use a non-woven geotextile membrane to line the trench during installation. This prevents fine soil from entering the land drain, which could cause a blockage that will be difficult to clear in the future. You can also find filter 'socks' that fits around the flexible land drain pipe. The size of these socks corresponds with the size of the land drain they are designed for use with (e.g. 60mm x 50m filter sock to be used with 60mm x 50m land drain). The filter sock bridges the corrugations of the pipe, which creates a much larger surface area for water absorption, increasing the system’s overall efficiency Our Land Drain Pipe and Land Drain Fittings are compatible with most leading brands used in the UK. | 
