Excerpt from Analytical Control of Water Softening: Thesis Water is used in practically all modern human industries in quantities so vast and applications so various and its quality is so different that the question of water supply is one of the most important considerations in the establishment of an industry. The importance of the quality of a water varies with the purposes for which it is to be used. A highly mineralized water is not suitable for use in steam making and in the household if for no other reason than that it is uneconomical. Iron bearing waters cannot be used in some industries and arts because of the tendency it has to stain. All industries using large quantities of water must have a relatively pure water, or at least a water suited to its specific purpose. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.