Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 423
k of roughing-in, that the temptation to err is great. If thewaste stack cannot come near the fixture, then follow the loopprinciple, and turn up and into the vent stack, branching the trapinto the waste branch, and taking the crown vent into the ventstack; as shown in Fig. 157, or into a vent… … Fig. 157. Method of Securing Loop when Waste Stack is uot Near Vent Stack. 350 PLUMBING 127 pipe at the fixture end of each loop to branch the waste andcrown vent into, as iUustrated in Fig. 158. In this way, half of thebranch loop acts as a waste, and half as a vent, and there is…
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