L'assainissement ; un manuel pratique pour les inspecteurs sanitaires et autres;avec apxon droit sanitaire, par Herbert Manley . il earthenwarepart de l'appareil, c'est, à l'exception ci-dessus, lorsqu'arubber-ring peut être faite 122 ASSAINISSEMENT PRATIQUE. La vanne-bOX d'une valve penderie devrait également être bien ventilé, mais, dans ce cas, tout ce qui est nécessaire est de l'exécuter par thewall direct, où il peut être écourtée. Le chef de l'objet d'thisventilating pipe est d'éviter le piège de syphonage connectedwith le débordement de pan, qui, autrement, pourraient se produire, particularlywhen-slop est jeté dans l'eau fermer

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Practical sanitation; a handbook for sanitary inspectors and others;with apxon Sanitary law, by Herbert Manley . he earthenwarepart of the apparatus—that is, with the above exception, when arubber-ring joint may be made 122 PRACTICAL SANITATION. The valve-bOX of a valve closet ought also to be ventilated, but in this case, all that is necessary is to carry it through thewall direct, where it may be cut short. The chief object of thisventilating pipe is to prevent syphonage of the trap connectedwith the pan overflow, which otherwise may occur, particularlywhen slop-water is thrown into the closet, and thus a largequantity of water i3 suddenly discharged. The junction of the soil-pipe with the drain is not so simplea matter as many workmen seem to think, and it is often madein a very faulty manner. The usual practice is to introduce the.plain end of the soil-pipe into the socket of the drain-pipe, thejoint being made with cement in the ordinary way; this, however, is not sufficient. The accompanying drawing (Fig. 80) shows a good method ofmaking this joint. It will be noticed that the soil-pipe is. Fig. 80. prolonged for a little distance into the drain-pipe, and it has alead flange attached to it which rests on the floor of the socket, the joint being made with cement. The drain-pipe whichreceives the soil-pipe should rest on a solid foundation ofconcrete. The service-pipe to the closet, which, as already pointedout, must on no account be connected direct with a cisternthat supplies drinking water, or with a general service-pipe, ought to be of sufficient size to insure a good flush. The plumbers WorS.. 123 diameter must never be less than 1£ inches, and this is toosmall unless the flush-tank with whicn it is connected is fixedmore than 5 feet above the rim of the closet. Any elevationunder this requires a service-pipe of at least 1£ inches to insurea good flush. The usual method of connecting the service-pipewith the closet-basin is by means of putty or red lead, bu

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• bookcentury1900
• bookdecade1900
• booksubjectsanitat
• bookyear1904