Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 240
e shouldbe taken to deal only with reputable concerns. The composition of these compounds is almost invariably based on soda with certain tannicsubstances, and in some instances a gelatinous substance which is presumed to encircle scale par-ticles and prevent their adhering to the boiler surfaces.… … Fig. 10. Arrangement of Water Softening Plant. itate it as a muddy form of calcium carbonate which may be blown off. The tannic compoundsare used in connection with the soda with the idea of introducing organic matter into any scalealready formed. When it has penetrated to the boiler metal,…
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
