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The national average cost of French drains is $9,250, according to Angi, a service that connects users with home and landscaping pros. Specifically, yard trench drains cost about $30 to $90 per ...
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 ...
A water outlet. Each of these plumbing fixtures has one or more water outlets and a drain. In some cases, the drain has a device that can be manipulated to block the drain to fill the basin of the fixture. Each fixture also has a flood rim, or level at which water will begin to overflow. Most fixtures also have an overflow, which is a conduit ...
French was born in 1813 and published Farm Drainage in 1859, but a quick Google Books search shows that the term "French drain" was used for this sort of drain as early as 1738. Here are English records from 1808 describing contracts to build "French drain"; here's a citation from Ohio from 1851 ; here are some Canadian records from 1853 .
Infiltration will occur where local groundwater elevation is higher than the sewer pipe. Gravel bedding materials in sewer pipe trenches act as a French drain. Groundwater flows parallel to the sewer until it reaches the area of damaged pipe. In areas of low groundwater, sewage may exfiltrate into groundwater from a leaking sewer. [6]
This page was last edited on 25 September 2010, at 03:51 (UTC).; Text is available under the
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