Publisher's Synopsis
Excerpt from Water and Gas Works Appliances and Pumping Machinery
Tin-lined lead pipe consists of lead pipe with a lining of block-tin about 31, of an inch in thickness. This pipe is more expensive than ordinary lead piping, but has particular merit for the reason that pure tin resists the acids likely to be found in any water supply. On account of the melting point of tin being considerably lower than that of lead, care is necessary in mak ing joints to prevent the tin being disturbed. An English authority recommends the use of cadmium in the solder, rendering it fusible at a much lower temperature and thus preventing the melting away of the tin lining. Service-pipe Connections - Connections between service-pipe and street mains are usually made with a corporation cock; this is a brass stop-cock, threaded for screwing in a hole drilled and threaded in the cast main, and fitted with a union joint to connect with the service-pipe. The drilling, tapping and insertion is performed without loss of water by means of tapping machines designed for this purpose. Where a rigid service-pipe is to be joined, the connection should be made by using a short piece of lead pipe, as its flexibility allows the ad justment of the service in the trench without undue strain. Either at the curb or building line of streets, it is usual to place a second stop-cock in the service-pipe, and inclose the same with a box, thus making the turning on and shutting off of the water accessible to the proper person. Tests for Pure Water. - The New Jersey State Board of Health has issued the fol lowing directions for making simple tests of the purity of drinking-water: color - F ill a clean, long bottle made of colorless glass with the water; look through the water at some black object; the water should appear perfectly colorless and free from suspended matter. A muddy or turbid appearance indicates the presence of soluble organic matter or solid matter in suspension. Odor - Empty out some of the water, leaving the bottle half full; cork up the bottle and place it for a few hours in a warm place; Shake up the water, remove the cork and critically smell the air contained in the bottle. If it has any smell, and especially if the odor is in the least repulsive, the water should be rejected for domestic use. By heating the water to boiling, an odor is evolved sometimes that otherwise does not appear. 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.