Identifier: modernplumbingilstar (find matches)
Title: Modern plumbing illustrated : a comprehensive and thoroughly practical work on the modern and most approved methods of plumbing construction ...
Year: 1907 (1900s)
Authors: Starbuck, R. M. (Robert Macy), 1844-1927
Subjects: Plumbing
Publisher: New York : N.W. Henley
Contributing Library: Boston College Libraries
Digitizing Sponsor: Boston Library Consortium Member Libraries

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late, or wood linedwith sheet copper, and of any desired length, which is comparativelyself-cleansing. The sink is made with an outer and inner compartment, thelatter running through the center of the sink, with space for wash-ing on either side. There is also a narrow space at the end of theinner compartment, between it and the outer compartment, in whicha standing overflow is located, connected into the waste. A line ofsupply pipe runs above and over the center of the sink, and is pro-vided with sprays which throw the water down into the centercompartment, from which it overflows into the main body of thesink. Thus the first washing may be done in the outer compart-ment, with clean water always in the inner compartment for use inface washing. In factories employing a high grade of help, the line or batteryof lavatories shown in Fig. A of Plate 37, and Fig. E of Plate 38is much in use. Plate XLII THE USE OF FLUSHING VALVES PJote 4a. Use, o/ r/u shing l/a/i/<z 3 ^^^^m/////////////M
Text Appearing After Image:
THE USE OF FLUSHING VALVES Flush valves are used in place of tanks in the flushing ofw^ater closets, urinals, and slop sinks. They may be placed directlyback of and above the fixtures which they serve, or may be con-cealed behind partitions, as shown in Figs. C and D of Plate 42. Flush valves may be operated either under direct pressure, asin Fig. B, or under tank pressure, as in Fig. A. The operation offlush valves under tank pressure is generally the more satisfactorymethod, as there is always a storage of water in the event of aninterruption of the public supply, and the pressure is more positiveand reliable. The tank pressure is always uniform, while directpressure is extremely variable, which is an undesirable feature innot only this work, but in all branches of supply work. When astorage tank is used, the height of the tank above the highest flushvalve should not be less than 10 ft. if good service is to be expected. Flush valves may be obtained that are to be connected with the

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