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:
“The terrible tabulation of the French statists brings every piece of whim and humor to be reducible also to exact numerical ratios. If one man in twenty thousand, or in thirty thousand, eats shoes, or marries his grandmother, then, in every twenty thousand, or thirty thousand, is found one man who eats shoes, or marries his grandmother.”
—Ralph Waldo Emerson (1803–1882)
“Why is it so difficult to see the lesbian—even when she is there, quite plainly, in front of us? In part because she has been “ghosted”Mor made to seem invisible—by culture itself.... Once the lesbian has been defined as ghostly—the better to drain her of any sensual or moral authority—she can then be exorcised.”
—Terry Castle, U.S. lesbian author. The Apparitional Lesbian, ch. 1 (1993)