SPECIAL PRECAUTIONS For Schier Grease Interceptor Installations - Failure to follow this guidance voids your warranty DO NOT AIR TEST UNIT OR RISER SYSTEM! Do not install this unit in any manner Doing so may result in property damage, personal injury or death.
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SPECIAL PRECAUTIONS For Schier Grease Interceptor Installations - Failure to follow this guidance voids your warranty Secure Cover Adapters Below Grade Installation Slab Requirements Cover adapters must be secured to A concrete slab to finished grade with rebar is required when installing base units in above grade installations interceptor below grade.
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GETTING TO KNOW THE GB-75 Inlet di user cover (white) Pickable cast iron cover (standard) 9. Bulkhead connection gasket 19. Bolted composite cover (optional) 2. Cover gasket 10. Bulkhead connection retaining nut 20. Air relief/visual access 3. Safety Star® access restrictor 11.
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Excavate hole at least 12" larger than interceptor on all sides and 6" deeper than tank bottom. Lay a level bed of well-packed, crushed aggregate (approximately 3/4" size rock or sand, with no fines) in the base of hole. page 5 of 10 Schier | GB-75 Installation Guide...
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Cap unused connections(all configurations) Screw in provided 4" cleanout plugs using pipe thread sealant or tape approved for use with plastics. Do not cap the inlet or outlet connections attached to the di users. page 6 of 10 Schier | GB-75 Installation Guide...
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Before risers extension handle have been installed, cut pipe to length and attach to top of cover using PVC primer/cement. Extension handle length should be about 12" shorter than total riser height. page 7 of 10 Schier | GB-75 Installation Guide...
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Place unit into final position and set level. Mechanically couple inlet and outlet drainage lines to unit. Do not solvent weld. Ensure all upstream fixtures are trapped. Vent per local code. Installation of 2-way cleanout tees to grade (by others) is recommended for buried installations. page 8 of 10 Schier | GB-75 Installation Guide...
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Hours 8am-5pm CST, M-F Bring Covers Flush-to-Grade The GB-75 is ready for burial depth of 40" from finished grade to bottom of tank (or 13-1/2" to centerline of inlet). Deeper burials will require extending the cover adapters and possibly adding risers.
(including but not limited to tidal surge areas, floodplains and areas that receive storm water) the GB-75 must be installed with Schier model AK1 anchor kit. Model AK1 anchor kit Backfill and Finished Grade DO NOT COMPACT BACKFILL Backfill...
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