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INSTALLATION GUIDE
GB-250
100/200 GPM Grease Interceptor for Indoor/Outdoor Use
Contents
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Getting to Know the GB-250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Buried Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
On the Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Part #: 4055-001-02
Find these instructions online at: schierproducts.com/gb-250
© Copyright 2020 Schier, 03/31/2020
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Summary of Contents for Schier GB-250
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Page 1: Table Of Contents
Special Precautions .........2 Getting to Know the GB-250 ....... 4 Buried Installation . -
Page 2: Special Precautions
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. - Page 3 SPECIAL PRECAUTIONS For Schier Grease Interceptor Installations - Failure to follow this guidance voids your warranty High Water Table Installations Fully Support Base of Unit Install unit on solid, level surface in contact with the entire footprint of unit base...
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Page 4: Getting To Know The Gb-250
GETTING TO KNOW THE GB-250 Pickable Cast Iron Cover (standard) 9. Inlet Diffuser Foot Retaining Nut 17. Air Relief/Visual Access 2. Cover Gasket 10. Inlet Diffuser (Foot) 18. Outlet Diffuser Retaining Nut 3. Safety Star (x2) 11. Bulkhead Connection Retaining Nut 19. -
Page 5: Buried Installation
Inspect unit, connections and gaskets for leaks. Check water level at specific time intervals per local code. Have a Leak? Call customer care at 913-951-3300 Hours 8am-5pm CST, M-F GB-250 Installation Guide page 5 of 14... - Page 6 Cap all unused connection points with 4" cleanout plugs using pipe thread sealant or tape approved for use with plastics. Straight-through GB-250 Installation Guide page 6 of 14...
- Page 7 Inlet grooved side of plate PVC primer/cement. Bulkhead must face the unit. Fitting GB-250 Installation Guide page 7 of 14...
- Page 8 Wet or Air Test Piping Per Local Code Have a Leak? Call customer DO NOT AIR TEST UNIT OR RISER SYSTEM! care at 913-951-3300 Doing so may result in property damage, personal injury or death. Hours 8am-5pm CST, M-F GB-250 Installation Guide page 8 of 14...
- Page 9 BURIED INSTALLATION Bring Covers Flush-to-Grade The GB-250 is ready for burial depth of 44" 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. Measure dimension X to determine riser height needed.
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Page 10: On The Floor Installation
Inspect unit, connections and gaskets for leaks. Check water level at specific time intervals per local code. Have a Leak? Call customer care at 913-951-3300 Hours 8am-5pm CST, M-F GB-250 Installation Guide page 10 of 14... - Page 11 Cap all unused connection points with 4" cleanout plugs using pipe thread sealant or tape approved for use with plastics. Straight-through GB-250 Installation Guide page 11 of 14...
- Page 12 Inlet grooved side of plate PVC primer/cement. Bulkhead must face the unit. Fitting GB-250 Installation Guide page 12 of 14...
- Page 13 In these situations Above Grade Support Kit model AGS1 is required to be installed to maintain GB-250 structural integrity. Wet or Air Test Piping Per Local Code Have a Leak?
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Page 14: Installation Options
Interceptor model AK1 anchor kit Series Installations Rated Grease Capacities For lower flow rates and higher Top View of 4 GB-250 Units Piped in Series grease storage requirements. for Units Piped in Series Piping between units and Removal Efficiency two-way cleanout tees by others.
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