What is a french drain in a yard
French Drain Systems: When You Need Them
HOW A FRENCH DRAIN WORKSwhat with you
Poodles, perfume, pastries. But a French drain is nothing more than a ditch in the ground, inset with a perforated pipe under a layer of gravel. Whereas gutters collect precipitation as it runs off the roof, French drains manage water at ground level. Rerouting the flow of water with a French drain would alleviate that problem. A French drain also provides a solution for basements that admit water through the foundation.
The French drain is a simple, yet versatile construction which can be used to drain standing water from problem areas in your yard or basement. The process is fairly simple; it just requires a little preparation and planning, the right tools and materials, and a little DIY know-how. To build a French drain, choose a spot with a slight downhill slope, then dig a trench that is about 6 inches wide and 18 to 24 inches deep. Line the trench with water-permeable landscape fabric, leaving at least 10 inches of excess fabric on either side of the trench. Shovel in a layer of gravel along the bottom of the trench, then lay the perforated drain pipe into the trench on top of the gravel.
Water always flows downhill, and by the easiest route possible. How a French Drain Works French drains provide an easy channel for water to flow through. Water runs into a gravel-filled trench, then into perforated pipe at the bottom of the trench. The trench bottom should be sloped about 1 inch for every 8 feet in the direction you want water to flow. Depending on your situation, the water can be diverted to:. Also called a curtain drain, it extends horizontally across your property, directly uphill of the area you want to dry out. It intercepts water and channels it around the soggy spot.
A French drain  or weeping tile also trench drain , filter drain , blind drain ,  rubble drain ,  rock drain ,  drain tile , perimeter drain , land drain , French ditch , sub-surface drain , sub-soil drain or agricultural drain is a trench filled with gravel or rock or containing a perforated pipe that redirects surface water 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. French drains are primarily used to prevent ground and surface water from penetrating or damaging building foundations and as an alternative to open ditches or storm sewers for streets and highways. 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.
There are different types of French drains—the types used in landscaping are for dealing with excess surface water. For example, if your neighbor's land stands at a higher elevation than yours, you may get water runoff from your neighbor after a heavy rain. Since you can't change the neighbor's land, you need better yard drainage to deal with all the water. A French drain is a common and inexpensive solution. A landscaping French drain is a gravel-filled trench lined with landscape fabric to keep soil and silt out of the gravel. While some types of these drains include a perforated drain pipe sometimes called drain tile and may be covered with grass, the traditional French drain is simpler and easier to build. It has no drain pipe which is prone to clogging anyway and has gravel running all the way to the surface.
If heavy rains have left your yard with an unwanted water feature or the spring thaw has saturated your yard, a French drain can help. Placing a.
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