San Francisco water . Spring Valley Water Company (the San Andres watershed), placed at the dis-posal of the Forest Service through the cour-tesy of the Company. The first day in thefield was spent in solving a fire-suppressionproblem—one hundred and fifty rangers andsupervisors fighting an imaginary fire thatwas supposed to have swept over three hun-dred acres of brush land before being dis-covered. To control this conflagration, firecamps were established and connected byemergency telephone lines; men, supplies,and fire-fighting tools transported to thescene, and fire lines laid out to check
San Francisco water . Spring Valley Water Company (the San Andres watershed), placed at the dis-posal of the Forest Service through the cour-tesy of the Company. The first day in thefield was spent in solving a fire-suppressionproblem—one hundred and fifty rangers andsupervisors fighting an imaginary fire thatwas supposed to have swept over three hun-dred acres of brush land before being dis-covered. To control this conflagration, firecamps were established and connected byemergency telephone lines; men, supplies,and fire-fighting tools transported to thescene, and fire lines laid out to check the on-rushing fire. After a stubborn fight the firewas controlled by night, and the men gather-ed together to hear the findings of the Boardof Review which had closely followed eachstep taken to control the blaze. The second day was spent in testing newand improved fire-fighting apparatus. Prac-tice was had with portable fire-pumps thatcould be handled by two men, and whichwould throw a sizable stream of water at. U. S. Forest Rangers stage a sham battle against fire on the San Andres watershed of Spring Valley Water Company. These lines threw sizable streams along the ridge 1500 feet from San Mateo Creek, where they were supplied with water by portable twin-cylinder gasoline-driven pumps April, 1925 SAN FRANCISCO WATER fifteen hundred feet from the source of sup-ply, or several times that distance by usingpumps and water-tanks in relay. Experi-ments were also conducted with portablewater-containers carried on a mans backand equipped with a hand force-pump—this apparatus being especially effective forthe extinguishing of flames in burning logsand dead trees. Another important new in- vention was a portable flame-thrower, oper-ated with coal-oil or gasoline, which couldbe used for burning brush or back-firing onlarge conflagrations. A side-hill plow andscraper adapted for use in building firelines and mountain trails was also given atrial. All of these inventions have been
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectwatersupply, bookyear
