Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 451
conformto the simplest, most direct course—as before said. Other shapes,then, present needless fouling surface and space for accumulationof matter that interferes with the proper service of the trap. De-parture from the shape mentioned is necessaiy to secure an unventedtrap that cannot be siphoned.… … 378 PLUMBING lo3 fixtures, is presented by the fact that to crown-vent the trap prohibitssufficient immediate vertical rise of the crown vent to get above thefixture overflow-level, without making an offset in the vent, which, incase of stoppage of the waste, favors choking of the vent in the…
Architecture · Building · Carpentry
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