File:A manual of hygiene and sanitation (1903) (14780938754).jpg

Identifier: manualofhygienes00egbe (find matches)
Title: A manual of hygiene and sanitation
Year: 1903 (1900s)
Authors: Egbert, Seneca, 1863-1939
Subjects: Sanitation Hygiene
Publisher: Philadelphia, New York, Lea Brothers
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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Text Appearing Before Image:
McClellans anti-siphon attachment. Sectional view of vent with cup liftedout of the mercury by the inflowing current of air, indicated by the arrows. (ROH)&.) atmospheric pressure only when the siphonage sufficientlyreduces the pressure within the pipes. The mercury andthe weight of the cup make a seal sufficient to preventany outflow of gas. It is also said that if the waste-pipe be connected with the soil-pipe by a divergent open-ing, siphonage will be less likely to occur. All waste-pipes, soil-pipes, and house-drains should be 378 THE REMOVAL AND DISPOSAL OF SEWAGE. tested before use by closing all openings and forcing inair to a pressure of at least thirty pounds to the square
Text Appearing After Image:
inch. Leaks may be detected by plugging the loweropenings and filling the pipes with water, or by pouring NON-ENCLOSURE OF FIXTURES. 379 an ounce of oil of peppermint into the highest fixture andquickly following this with several gallons of hot water,the heat volatilizing the oil, whose odor escapes at everyopening in the pipes unprotected by a trap or Avater-seal.The heat imparted by the hot water will also help to traceout hidden soil-pipes. All fixtures should be exposed to the free ventilationof air underneath and about them, and water-closets andwash-stands should not be closed in with carpentry work.(See Fig. 70.) Traps should also, if possible, be where Fig. 71.

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