A kind of classic drain like a trench is dug into the ground for directing groundwater away from a certain specific area. Usually, it is lined with rock and gravel, with a perforated pipe that is placed in the center. ...
A kind of classic drain like a trench is dug into the ground for directing groundwater away from a certain specific area. Usually, it is lined with rock and gravel, with a perforated pipe that is placed in the center. ...