. A manual of veterinary hygiene. Veterinary hygiene. 368 VETEEINAEY HYGIENE error to put down a larger pipe than necessary, as the solid contents get left behind; within reason the smaller the pipe the better the flushing. The gradient given to a drain is a very important matter, if too steep the water runs off and leaves the solids behind, if too shallow the drain is insufficiently Fig. 154.—Access Pipe. The gradient depends upon the diameter of the pipes, the smaller the pipe the steeper the gradient; what the sanitary engineer aims at is a continuous flow throughout the entire sy
. A manual of veterinary hygiene. Veterinary hygiene. 368 VETEEINAEY HYGIENE error to put down a larger pipe than necessary, as the solid contents get left behind; within reason the smaller the pipe the better the flushing. The gradient given to a drain is a very important matter, if too steep the water runs off and leaves the solids behind, if too shallow the drain is insufficiently Fig. 154.—Access Pipe. The gradient depends upon the diameter of the pipes, the smaller the pipe the steeper the gradient; what the sanitary engineer aims at is a continuous flow throughout the entire system of between 3 and 4 feet per second. In the case of a 4-inch pipe this is secured by a gradient of 1 in 40, of a 6-inch pipe by one of 1 in 60, of a 9-inch pipe by one of 1 in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smith, Frederick 1857-1929. New York : W. R. Jenkins
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