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The Outlet

Categories: DRAINAGE

The value of any drainage system is dependent upon the

outlet. Its location is the first thing to be determined. If the land

is nearly flat, a telescope level should be used to determine

elevations of all low points in the land to be drained. The outlet

should permit a proper fall throughout the length of the system, and it

should not require attention after the work is completed. If it is in

the bank of a stream or ditch, it should be above the normal level of

the water in the stream. In times of heavy rainfall water may back up

into the main with no injury other than temporary failure to perform

its work, but continuous submersion will lead to deposits of silt that

may close the tile.



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