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E-19 <br /> Distribution pipes used for pressure distribution must be constructed of Pressure Fittings <br /> sound and durable material not subject to corrosion, decay, or loss of are Important <br /> strength under continuously wet conditions. All pipes and associated <br /> fittings used for pressure distribution must be properly joined together. <br /> he pipe and connections must be able to withstand a pressure of at <br /> least 40 pounds per square inch. . <br /> The perforated pipe laterals should be connected to a 2-inch diameter 2" diameter <br /> manifold pipe and should have ends capped. The laterals should be manifold for all <br /> spaced no further than 40 inches on center and no further than 20 mounds <br /> inches from the edge of the rock. <br /> The manifold pipe should be connected to the supply pipe from the <br /> pump and should be sloped toward the supply pipe from the pump. At <br /> least 2 inches of rock should be placed over the distribution pipes. <br /> Perforated Laterals <br /> • <br /> Figure E-18 shows a layout of perforated laterals ou rovide 1pr tlure <br /> distribution of effluent over the rock layer of a g <br /> of <br /> the perforated lateral is measured from the point where the effluent <br /> enters to the end cap. All connections in the pressure distribution <br /> system must be tight in order to prevent leakage and to withstand <br /> pressure. 40 <br /> E LAYOUT OF <br /> DISTRIBUTIONTED PIPE LATERALS FOR <br /> IN MOUND <br /> PERFORATED PLASTIC PIPE <br /> -- <br /> . PERFORATIONS SPACE la '�=""^tg fDOr�ON <br /> ON CENTER. PfRFORAT • • x p <br /> V I EEDW ci v BE /is: />z 16 <br /> `e 2 MANIFOLD <br /> PIPE <br /> •� PERFORATIONS ON BOTTOM OF ,,-�"%� <br /> PLASTIC PIPE -- <br /> / <br /> / / r---- PIPE FROM PUMA <br /> / :, <br /> END CAP 1O �L, 1 JL'iTEga� � . <br /> ✓,Q D <br /> "r°RA1 E PUMP NG Cho MBER <br /> OF P <br /> LOG, /5o , <br /> igure -1 S <br /> (AI/� I1tx& S 3c,1 1 <br /> CL <br />