Elements of plumbing . m, but thatthe joints must stand a water test. The testing of soilstacks is explained under another heading. The lines ofcast-iron pipe depend to a considerable extent upon thesejoints to make the whole line rigid. Caulking of Fittings.—The caulking of fittings, whiledone the same as a straight pipe, is far more difficult. Theimproper making of these joints is the cause of manyleaks. A long sweep fitting is caulked without a greatdeal of difficulty. If a short bend fitting is used, the matterof caulking is difficult. The fitting is so short that it isalmost impossible to
Elements of plumbing . m, but thatthe joints must stand a water test. The testing of soilstacks is explained under another heading. The lines ofcast-iron pipe depend to a considerable extent upon thesejoints to make the whole line rigid. Caulking of Fittings.—The caulking of fittings, whiledone the same as a straight pipe, is far more difficult. Theimproper making of these joints is the cause of manyleaks. A long sweep fitting is caulked without a greatdeal of difficulty. If a short bend fitting is used, the matterof caulking is difficult. The fitting is so short that it isalmost impossible to get a caulking iron into the mechanics will have to work at the throat from eachside until this part has been sufficiently caulked. I callattention to this point, for I know it to be a failure in a STORM AND SANITARY DRAINAGE 91 large number of jobs when it comes to put the test on. Inorder to caulk the fittings, they must be put in their exactlocation and positions before the lead is poured in, for after. Fig. 50.
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