Applied Science, Vol. 21
Mackenzie, K. A. Excerpt from Applied Science, Vol. 21: February, 1908The third consideration and a very important one is that of pressure. Most towns cover a territory more or less varied as to elevation. A great difference in level in the different parts of a town makes the problem somewhat complicated, because the pressure sufficient to carry water to the most elevated district will be embarrassingly great in the lower ones and consequent ly it is frequentl...