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PA yr 4i1 ? <br /> An observation pipe may serve as a combination obsetvatiodvent pipe providing it tenninates in the <br /> same manner as required for vent pipes, See Figure 6. <br /> 'v.iri tualcn Y.a4 • 4. <br /> 1 r..4111 <br /> • •Wok. •Flna lr i • <br /> . pdbn9 ahtrilicnlon raters' <br /> txpt ► typ• <br /> • <br /> -Syfism.elmdon <br /> Watertight cap <br /> • <br /> 4"min.Oa: i <br /> I <br /> • <br /> I Slot • I <br /> L 6" <br /> 6"min: II min. <br /> I <br /> ., Infiltrative surface ' <br /> Bar "min.dia.3 <br /> Water Closet Collar <br /> Observation pipes <br /> ©'ve Oh5P✓' V4-fla•v <br /> 1/"41.1'J,r".rx`H,'rfr, , <br /> 4„...) <br /> .Cede I TenV- 7,, t.z' above .4c j <br /> f, t j <br /> 1 <br /> . i ,e sue, . -� (a l* <br /> :. <br /> '' r <br /> • . <br /> G,.z', <br /> t IC:3 <br /> . Ara m e <br /> 1.1211 .' <br /> • <br /> 1,.... . 6,4 ---> <br />