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1 Containment system <br /> testing {cont.} F <br /> Fig. 11-2.U-traps for monitoring Tighten hose <br /> the annularspace between clamps <br /> primary and secondary lines are alternately <br /> fabricated using saddles <br /> with 2-inch outlets and <br /> Dualoy 30001L primary <br /> pipe and fittings. <br /> By others 42 to 48-inch riser <br /> i <br /> Figs. 11-3,4.Alternative <br /> configurations forinstalling U-traps. <br /> Above:The annularspace is isolated _-- <br /> from the sump by means of plain <br /> reducers.Below:Additional space <br /> inside the sump is obtained by using a <br /> factory-modified sump penetration F_ - — - <br /> fitting as shown in Fig. 10-5. 6y j <br /> others 42 to 48-inch riser <br /> i <br /> Annular <br /> space sealed <br /> — J <br /> _ J <br />