A French drain in yard is a gravel-filled, sloping ditch with a perforated pipe that is intended to divert water away from trouble spots. It efficiently gathers groundwater and surface water, keeping it from collecting in unwanted areas. A high water table, compacted soil, insufficient slope, and severe rainfall are some of the causes of drainage problems. Water builds up when it cann... https://texasgardenmaterials.com/landscape-design-houston-tx/french-drain-installation-houston-tx/