A French drain or weeping tile (also blind drain, rubble drain, rock drain, drain tile, perimeter drain, land drain or French ditch) is a trench covered with gravel or rock or containing a perforated pipe that redirects surface and groundwater away from an area. A French drain can have perforated hollow pipes along the bottom (see images) to quickly vent water that seeps down through the upper gravel or rock. Pre-engineered French drain systems, such as EZflow/EZ-Drain from NDS, eliminate the need for gravel and rock and may decrease installation time.
French drains are primarily used to prevent ground and surface water from penetrating or damaging building foundations. Alternatively, French drains may be used to distribute water, such as a septic drain field at the outlet of a typical septic tank sewage treatment system. French drains are also used behind retaining walls to relieve ground water pressure.
Read more about French Drain: History and Construction, Legal Issues, Gallery
Famous quotes containing the words french and/or drain:
“This has been illustrated copiously each day with photographs taken by the author, reproduced by means of cuts such as only French newspaper-engravers can make, presumably etched on pieces of bread.”
—Robert Benchley (1889–1945)
“When we can drain the Ocean into mill-ponds, and bottle up the Force of Gravity, to be sold by retail, in gas jars; then may we hope to comprehend the infinitudes of man’s soul under formulas of Profit and Loss; and rule over this too, as over a patent engine, by checks, and valves, and balances.”
—Thomas Carlyle (1795–1881)