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1 Sump penetrations The Dualoy sump penetration fittin Fi 10-1 g( g. )provides a simple means of penetrating 42 to 48-inch diamelerfibefglass tank risers or sumps in contained piping systems.The fitting is typically mounted through a sump wall.Ported reducing closures(Fig. 10-3) may be used inside the sump to isolate the annular space between the primary and the containment pipe and to provide a monitoring port.Alternatively,the sump fitting is available with a factory-installed monitoring port(Fig.10-6).The standard sump fitting can be used in square sumps by reversing its direction. Crowned to fit 42 to 48-inch riser 42 to 48-inch riser ,. (not to scale) i Sand 1 inch around 0— 4-inch hole Figs. 10-1,2.The Dualoy sump fitting Remove burrs (left)provides a simple means of around hole Penetrating 42 to 48-inch diameter fiberglass tank risers (right)orsumps in contained pipingsystems. Before installing the primary • Use a hole saw to cut a 4-inch hole in the sump wall as low as possible to provide maximum slope into the sump. ° • Remove any burrs from the edge of the hole. • Check hole size by dry fitting the fitting from the inside.Make sure the thickest part of the saddle-shaped flange faces upward. • Using a disc grinder,abrade about 1 inch around the hole to provide a rough bonding surface. • Mix Ameron B20 adhesive following the instructions included in the kit.Apply an even layer of adhesive to • The edge of the hole and around the hole, • The bonding surface of the fitting flange,and • The threads to lock the nut permanently in place. • Install the fitting in the proper orientation. • Make up the nut from the outside and check around the edge of the flange on the inside to verify the presence of an adhesive bead.If a bead is not visible all the way around the fitting,remove and apply more adhesive.Tighten with a wrench. • Do not move the fitting until the adhesive has cured.Follow the cure time recom- mendations on the adhesive instruction sheet. After installing the primary Most specifications will call for isolating the annular containment space from the sump. This may be accomplished using 3 x 2 inch containment closure pieces as shown in Fig.10-3 or by using a sump fitting that has been provided at the factory with a bushing in the annulus between the sump fitting itself 42 to 48- and a primary pipe By inside the sump. others inch riser Psleeve coupling as shown in Fig.10-5. Fig. 10-3.A portedreducing closure --_ - - _ When using 3 x 2-inch isolates the annularspace between reducing closures to the primaryand the containment isolate the annular pipe and provides a monitoring port .� space between the 3r4 NPTgaly coupling and primary and the nipple installed at factory secondary,provide 13