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d <br />CONNECTING TO MANHOLE <br />EXTENSION (MANwAY) <br />�1_ <br />U TRAPS Saddles, adapters and "U" trap piping should be bonded together with C20HT <br />according to Bulletin 7501. <br />The following saddle installation procedures should be observed in order to insure <br />maximum performance. <br />1. Sand with rough sandpaper or flapper sander all surface gloss from the pipe <br />wall where the saddle is to be bonded. <br />2. Locate the saddle on the pipe and trace the hole to be cut and the saddle's <br />outer perimeter. <br />3. Cut a hole of the desired size using a pilot drill and a circular hole saw. <br />Do not force the cutter or it will fray the edges of the hole. <br />4. Insure that the bonding surfaces are clean. If the surfaces are oily or greasy, <br />they may be cleaned with the joint cleaner found in the adhesive kit. It <br />is imperative that all surfaces be clean and dry before applying adhesive. <br />5. Mix C20HT adhesive according to directions, taking careful notice of the <br />working life. <br />6. Apply C20HT adhesive to the pipe wall, interior of the saddle, and the <br />edges of the pipe wall exposed by the hole. <br />7. Align the saddle over the hole and clamp to pipe with two hose clamps. <br />8. Tighten the clamps alternately until secure and an adhesive bead surrounds <br />the saddle. <br />9. If temperature is below 65°F, heat assist methods such as the Chem Cure <br />Pak or Heat Blanket must be used in order for the adhesive to cure. <br />10. Do not pressurize the line until the adhesive has fully cured. <br />The location and number of probes will determine whether to use "U" traps, <br />P, <br />reducer shells or open end termination in manhole extensions. <br />