Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 85
in in the trap, as shown in the cut. In actual use, however,if enough in volume runs through to completely fill the outlet, thefalling water will create a vacuum at A, which will cause the outsideair to force out the water in the trap until it falls below the bend B,thus destroying the seal. If,… … Fig. 44. S-Trap. inlet pipe must, of course, be carried to some main air pipe; and so itis customary to run beside the main soil pipe a line of vent pipesto which the different trap vents are attached, the main vent usuallystarting from the base of the soil pipe andentering the same again above the…
Architecture · Building
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