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Schier GB-250 User Manual

Schier GB-250
14 pages
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Part #: 4055-001-02
Find these instructions online at: schierproducts.com/gb-250
© Copyright 2020 Schier, 03/31/2020
Contents
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Getting to Know the GB-250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Buried Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
On the Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-13
Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
INSTALLATION GUIDE
GB-250
100/200 GPM Grease Interceptor for Indoor/Outdoor Use
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Schier GB-250 Specifications

General IconGeneral
CategoryGrease Interceptor
Grease Capacity250 lbs
Flow Rate50 GPM
MaterialPolyethylene
Inlet/Outlet Connection4"

Summary

Special Precautions

Installation Instructions and High Temperature Water

General guidance for plumbers, local codes, and high temp water requirements.

Hydrostatic/Pressure Slab Installations

Requirements for installing interceptors under hydrostatic slabs in concrete vaults.

High Water Table and Unit Support

Guidance for high water tables, full unit support, and piping support.

Suspended Installation Requirements

Using AGSI kit for suspended installations to maintain structural integrity.

Getting to Know the GB-250

Buried Installation

Pre-installation Precautions and Testing

Warnings on air testing, odor alerts, and performing water tightness tests.

Outlet Configuration and Flow Control

Setting up outlet diffuser, cleanout plugs, and installing flow control for 200 GPM.

Pit Excavation and Piping Connection

Steps for excavating the pit, preparing the base, connecting piping, and testing.

Cover Adjustment and Backfilling

Adjusting cover height, installing risers, backfilling, and pouring concrete slabs.

On the Floor Installation

Pre-installation Precautions and Testing

Warnings on air gaps, odor, and performing water tightness tests.

Outlet Configuration and Flow Control

Setting up outlet diffuser, cleanout plugs, and installing flow control for 200 GPM.

Piping Connection and Support

Connecting piping, installing the AGS1 kit, and testing.

Installation Options

High Water Table Installations

Requirement to use Anchor Kit Model AK1 for installations in high water table areas.

Series Installations

Guidance on piping multiple units in series for lower flow rates and higher storage.

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