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POMECO Multi -Port Spill Container Manhole Installation Instructions 1. Mark off finish grade. (See Figure 1.) Finish Grade a Figure 2. Set multi -port manhole assembly (skirt, ring, and cover) to the final grade position. (See Figure 2.) Finish Grade Figure 2 Note: It is strongly recommended that POMECO covers be installed with the following minimum clearances. Sheet metal skirts should have adequate clearance between the tank sump riser sidewall and or the sump top hat. A minimum of one and a half inches clearance on all sides is recommended between the POMECO skirt and the tank sump wall or the sump top hat wall. A minimum of two inches clearance is recommended between the bottom of the POMECO skirt and the horizontal surface of the tank sump or sump top hat. These clearances are recommended to allow adequate water migration away from the sumps. Great care should be used to maintain the recommended clearances when setting the rings and pouring the concrete. (See Figure 3.) 1'/z Min Figure POMECO Multi port Spill Container 3. Remove the cover and measure the distance from the top of the tanks to the final grade. 4. Cut the risers) from the underground tank so that both the fill and vapor risers are set below the final grade. Use the dimensions below: Spill Container Inches below grade (L) 5 Gal. Cast Iron Base 151/2° 5 Gal. Composite Base 17 1/" 7.5 Gal, Cast Iron Base 191/2° 7.5 Gal. Composite Base 21 1/2" Note: Add an extra 34/4" when using an OPW FSA400 Face Seal Adaptor. (See Figure 2.) 5. Deburr and thoroughly clean riser pipe(s). 6. Apply pipe dope to riser(s). The pipe dope is to be a non -hardening, gasoline resistant, pipe thread seal compound. 7. Install OPW FSA400 Face Seal Adapter onto riser. (Recommend Torque, 4" NPT, 125 ft -lbs min. to 250 ftdbs max.). Apply pipe dope to FSA400. The pipe dope is to be a non - hardening, gasoline resistant, pipe thread seal compound. This is optional for spill containers that are on the vapor lines. 8. Thread the spill containers on hand tight. Note: Do NOT attempt to completely tighten the containment bucket by using the containment bucket mounting ring at the top of the bucket. 9. Inspect the containment bucket gasket(s) and the ring gasket for damage. Replace the gasket(s) if they are damaged. 10. Apply an even bead of PISCES SL -1100 to the topside of the containment bucket gasket(s). (See Figure 4.) r�gure 4 11. Apply an even bead of PISCES SL -1100 to the topside of the ring gasket. (See Figure 4.) 12. Replace the multi -port cover, centering the riser(s) as close as possible in the containment openings. Be very careful not to move or damage the gaskets. Page 2