A manual of hygiene and sanitation . s of construction provision w411 have been made foreach of the five specified requirements of the system, andthe air in the soil-pipes will be almost as pure as that ofthe house itself. The absorption of foul gases by thewater in the house-traps and their subsequent dispersioninto the atmosphere of the house will also be almostimpossible. But there must always be free communica-tion between the air inlet into the house-drain and the 374 THE REMOVAL AND DISPOSAL OF SEWAGE. outlets from and at the top of the soil-pipes; otherwisethe air in the soil-pipe canno
A manual of hygiene and sanitation . s of construction provision w411 have been made foreach of the five specified requirements of the system, andthe air in the soil-pipes will be almost as pure as that ofthe house itself. The absorption of foul gases by thewater in the house-traps and their subsequent dispersioninto the atmosphere of the house will also be almostimpossible. But there must always be free communica-tion between the air inlet into the house-drain and the 374 THE REMOVAL AND DISPOSAL OF SEWAGE. outlets from and at the top of the soil-pipes; otherwisethe air in the soil-pipe cannot be changed and foul gaseswill accumulate which, by their pressure, w^ould tend toforce themselves into the house whenever an opportunityoccurred, and might even overcome the seal of some ofthe traps. Traps are ^^ appliances placed between house conve-niences (fixtures) and soil-pipes and drains or sewers, toprevent sewer-gas gaining an entrance into the traps are too complicated. The simpler a trap the Fig. 62. Fig.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthygiene, bookyear1903
