Mechanical Contracting & Plumbing January-December 1909 . than ten feet from stack or vent pipe,an approved resealing or anti-syphontrap may be used. It is believed thatthis arrangement is good for four floorswith a 2-inch main vent, and for fiveand six floors the main vent should beincreased to 2A inches at the fourthfloor branch. For seven to ten floorsthe main, vent should be increased to 3inches at the sixth floor branch and thesoil vent to 5 inches. In this designthe bathtub wastes must be discharged January 15, 1909 PLUMBER AND STEAMFITTER above the center line of the closet dis-charge p
Mechanical Contracting & Plumbing January-December 1909 . than ten feet from stack or vent pipe,an approved resealing or anti-syphontrap may be used. It is believed thatthis arrangement is good for four floorswith a 2-inch main vent, and for fiveand six floors the main vent should beincreased to 2A inches at the fourthfloor branch. For seven to ten floorsthe main, vent should be increased to 3inches at the sixth floor branch and thesoil vent to 5 inches. In this designthe bathtub wastes must be discharged January 15, 1909 PLUMBER AND STEAMFITTER above the center line of the closet dis-charge pipe. Fig. 3 shows the lay-out of three fix-tures in a bathroom, either used singleor double, used for three floors, with a Its complete installation for Torontowould cost a mere trifle. Instead of citizens objecting to locat-ing the purifying station near them, itwould be welcomed, as guaranteeing ing sewerage with chlorine (in the formof bleaching powder) at the rate of fiveparts to a million parts seweragewould be $ per million gallons
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