... connected with the network wherever practicable. They advised that the system of distribution be equipped with a sufficient number of gate valves, so located that no single case of accident, breakage, or repair to the pipe system would necessitate...
The San Francisco Earthquake and Fire of April 18, 1906: And Their Effects ... - Page 52
by Grove Karl Gilbert, Joseph Austin Holmes, Richard Lewis Humphrey, John Stephen Sewell, Frank Soulé - 1907 - 170 pages
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