Practical sanitation; a handbook for sanitary inspectors and others;with apxon Sanitary law, by Herbert Manley . is not an uncommon practice to use clay for the ignorant workman may, possibly, be excused for followingpast custom in this respect, but builders and architects aregreatly to blame if they countenance such a proceeding. Having carefully cemented the joint, not only at the top, but SEWERAGE AND DRAINAGE. 79 all round, the workman, before making the next joint, shouldsatisfy himself, by raking the pipe out with a specially con-structed wooden implement, that none of the cem
Practical sanitation; a handbook for sanitary inspectors and others;with apxon Sanitary law, by Herbert Manley . is not an uncommon practice to use clay for the ignorant workman may, possibly, be excused for followingpast custom in this respect, but builders and architects aregreatly to blame if they countenance such a proceeding. Having carefully cemented the joint, not only at the top, but SEWERAGE AND DRAINAGE. 79 all round, the workman, before making the next joint, shouldsatisfy himself, by raking the pipe out with a specially con-structed wooden implement, that none of the cement has beenpushed into the interior, otherwise it will interrupt the properflow of the sewage and lead to obstructions. Before replacing the soil the drain ought to be inspected by aresponsible person, who should test the integrity of the joints bymeans of the hydraulic test to be afterwards described. Thefirst portion of soil must be replaced with care, and should bepacked well under and on either side of the pipes, so as to guardagainst after-displacement, which is likely to cause fracture ofthe Fig. 28. Fig. 28 illustrates a good method of making a stonewaredrain joint. Hemp-spun yarn, free from tar, is first steeped influid cement (cement grout), and then well rammed into thejoint, so as to fill it about half. The joint is then completedwith stiff cement. Various patent joints have been invented from time to time,and it is found expedient tomake use of them in certaincases, as for example whenpipes have to be laid in water-logged soil, and difficulty isthus experienced in makinga water-tight joint in theordinary manner. One ofthese (Stanfords), which was
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsanitat, bookyear1904
