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CONECTING TO MANHOLE <br /> EXTENSION (MANWAY) <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 /> reducer shells or open end termination in manhole extensions. <br /> 5 <br />