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An inclination of 1 in 100 to 1 in 200 is typical. Lining the bottom of the ditch with clay or plastic pipe increases the volume of water that can flow through the drain. Modern French drain systems are made of perforated pipe, for example weeping tile surrounded by sand or gravel, and geotextile or landscaping textile.
According to the Johnston Farm, [11] tile drainage was first introduced to the United States in 1838, when John Johnston used the practice from his native Scotland on his new farm in Seneca County, New York. Johnston laid 72 miles (116 km) of clay tile on 320 acres (1.3 km 2). The effort increased his yield of wheat from 12 bushels per acre to 60.
Cross-section of weeping tile and leach field A drain field being installed. Many health departments require a percolation test ("perc" test) to establish the suitability of drain field soil to receive septic tank effluent.
Weeping tile is a porous plastic drain pipe installed around the perimeter of the house. The main purpose of external weeping tile is preventing water from getting into a basement. However, these pipes can become clogged or damaged, which causes excess water to put pressure on internal walls and basement floors.
Vitrified clay pipe (VCP) is pipe made from a blend of clay and shale that has been subjected to high temperature to achieve vitrification, which results in a hard, inert ceramic. VCP is commonly used in gravity sewer collection mains because of its long life and resistance to almost all domestic and industrial sewage , particularly the ...
Perhaps the Cubs stay away from top-tier starting pitchers in free agency and instead focus on landing one of the elite relief arms available, such as Tanner Scott, Jeff Hoffman or Clay Holmes.
Also called building tile, structural terra cotta, hollow tile, saltillo tile, and clay block, the material is an extruded clay shape with substantial depth that allows it to be laid in the same manner as other clay or concrete masonry. In North America it was chiefly used during the late 19th and early 20th centuries, reaching peak popularity ...
From January 2008 to December 2012, if you bought shares in companies when Alan R. Mulally joined the board, and sold them when he left, you would have a 92.0 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
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