File:Cassier's magazine (1904) (14582431880).jpg

Identifier: cassiersmagazi2719041newy (find matches)
Title: Cassier's magazine
Year: 1891 (1890s)
Authors:
Subjects: Engineering
Publisher: New York Cassier Magazine Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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gs. So-calledself-acting rain water separators maybe arranged on the outside conductorpipes of the house and in this way apure supply can be secured, even inthe case of large buildings or institu-tions, in which use of the soft rainwater can be made for laundry andboiler-feed purposes. The rain water is stored either inrain water tanks, in the attics ofhouses, or else in underground brick 6-4 In the Bermuda Islands, for in-stance, the water supply of the townsand parishes is obtained from the rainfall exclusively, the porosity of thecoral rock causing the rain to perco-late so quickly as to render the use ofwells impossible. Every visitor tothese islands must have been struckwith the fact that no matter how heav-ily it rains, the roads dry up entirelyin a few hours, owing to the peculiargeologic formation. Neither subter-ranean waters nor springs being avail-able, nearly every house is providedwith an undei ground cemented stor-age tank, which is connected either 49o CASSIERS MAGAZINE
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HOTEL MT. WASHINGTON, IN THE WHITE MOUNTAINS, AWATER SUPPLY AND FIRE PROTECTION. FORDS A GOOD EXAMPLESEE PAGE 497 COMPLETE with roofs finished with thin slabs orslates of the coral rock, or else thetanks are connected with so-calledsurface catchment areas, which arespecially prepared gathering areaswith a good slope. These are some-times quite extensive and are alwaysenclosed with a railing to keep off thecattle. Underneath the artificiallyprepared area, and at the lowest pointof this slope, an underground tank forstorage of water is built. The watersupply of the entire islands is obtainedin this way, and great care is exer-cised to keep the ^oofs and the catch-ment areas pure, clean, and white-washed. Another source of water supply maybe found in brooks or in runningstreams. Subterranean waters are notsubject to legal restrictions, but thetaking of water from open streams islimited by such considerations. Aknowledge of these will prove usefulto the engineer undertaking works ofwater

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