The second type — surface drainage is designed to protect the land from unnecessary precipitation (rain, snow, hail). He can arrange in two ways: linear and point. Linear implies the installation of long open trays throughout the territory. Pointing involves the placement of water collectors in low -powered places and near the water pipes. From there they take moisture and also transfer it to a special well. In order for the surface drainage system to be clogged, it is important to mount sand captures. Not only sand, but also leaves, small stones and other garbage will fall into them.
He can arrange
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