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A septic drain field, a septic tank, and associated piping compose a septic system. The drain field typically consists of an arrangement of trenches containing perforated pipes and porous material (often gravel) covered by a layer of soil to prevent animals (and surface runoff) from reaching the wastewater distributed within those trenches. [1]
A percolation test (colloquially called a perc test) is a test to determine the water absorption rate of soil (that is, its capacity for percolation) in preparation for the building of a septic drain field (leach field) or infiltration basin. [1] The results of a percolation test are required to design a septic system properly.
Schematic of a septic tank [2] Septic tank and septic drain field. A septic tank consists of one or more concrete or plastic tanks of between 4,500 and 7,500 litres (1,000 and 2,000 gallons); one end is connected to an inlet wastewater pipe and the other to a septic drain field. Generally these pipe connections are made with a T pipe, allowing ...
In the UK, a cesspit is a closed tank for the reception and temporary storage of sewage; in North America, this is simply referred to as a "holding tank".Because it is sealed, the tank must be emptied frequently – on average every 6 weeks [3] – but frequency varies a great deal and can be as often as weekly or as rarely as quarterly.
Elon Musk looks on, in the Oval Office of the White House in Washington, D.C., U.S. - Kevin Lamarque/Reuters
Thanks to natural gas, energy stocks have been outperforming other sectors and the broader market.. Year to date, the S&P 500 Energy ETF is up more than 7%, compared to the broad-based index's ...
Set to the audio recording of famous radio broadcaster Paul Harvey's 1978 poem, "So God Made a Farmer," Ram made a photo essay with images of tractors, grain bins, fields, workers and more to ...
Similar to in situ mining, heap leach mining differs in that it places ore on a liner, then adds the chemicals via drip systems to the ore, whereas in situ mining lacks these liners and pulls pregnant solution up to obtain the minerals. Heap leaching is widely used in modern large-scale mining operations as it produces the desired concentrates ...