Flushing

Definition and stakes

James Bartlett,  1911 Encyclopædia Britannica (1911)

“ When the gradient is slight, and the dry-weather flow very small, occasional flushing must be resorted to. Flap valves or sliding pen stocks are introduced at manholes; by closing these for a short time sewage (or clean water introduced for the purpose) is dammed up behind the valve either in higher parts of the sewer or in a special flushing chamber, and is then allowed to advance with a rush. Many self-acting arrangements for flushing have been devised which act by allowing a continuous stream of comparatively small volume to accumulate in a tank that discharges itself suddenly when full. ”
Source: Wikisource

Various,  Popular Science Monthly (1891)

“ A tea plant is picked as the successive "flushes" occur. A flush is the throwing out of new shoots and leaves, the latter of which form the tea of commerce. The average flushing period is from seven to nine months, and the intervals between flushes vary from seven to fourteen days. The number of flushes ranges from eighteen, where no manure is used, to twenty-five in good soil. To a certain extent, the harder a tea plant is picked, the more it becomes stimulated to reproduce new shoots in the place of those lost. ”
Source: Wikisource

Various,  Popular Science Monthly (1888)

“ The general principle that all plumbing fixtures shall act as flush-pots, so that the waste-pipes shall be automatically cleansed, is of great importance. A strong flushing action is secured by making the outlets of the fixtures as large as the waste-pipes
Fig 7.—A Basin, showing the Proper Form of Overflow-Pipe for all Lavatory Fixtures, and the Arrangement of Outlet and Trap to give Thorough Flushing to Waste-Pipes.
”
Source: Wikisource

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