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SPECIAL PRECAUTIONS
For Schier Grease Interceptor Installations - Failure to follow this guidance
voids your warranty
High Water Table Installations
Interceptors and risers are not designed
to withstand water table height in
excess of the top of the unit when buried
(see figure). If it is possible for this to
occur, install the interceptor and risers in
a water-tight concrete vault or backfill
with concrete or flowable fill (wet
concrete and flowable backfill should be
poured in stages to avoid crushing the
interceptor). At risk areas include but are
not limited to tidal surge areas,
floodplains and areas that receive
storm water. Great Basin™ models that
are direct buried in high water table
scenarios must be installed with an anchor kit. Models GB-50, GB-75,
and GB-250 use model AK1 anchor kit. Model GB-500 uses model AK2
anchor kit for use with deadmen anchors. Models GB-1000, GGI-750 and
GGI-1500 use model AK3 anchor kit for use with deadmen anchors.
Above Grade Installation Support
(for Model GB-500 Only)
The wet weight of the interceptor combined
with high temperature kitchen water
creates the potential for tank deformation
when installed above grade. Model GB-500
installed above grade must be installed
with Above Grade Support Kit model AGS2
to maintain structural integrity
GB-1000 Installation Guide
max water table height
for direct burial
Interceptor
Interceptor
Interceptor
deadman anchor
polyester strap
turnbuckle
AGS2
Fully Support Base of Unit
Install unit on solid, level surface in
contact with the entire footprint of
unit base; for suspended
installations design trapeze to
support the wet weight of the unit.
Do not partially support unit or
suspend unit using metal
U-channel to create a trapeze.
Support Inlet and Outlet Piping
For above grade installations ensure
heavy inlet and outlet piping (such as
cast iron or long runs) is properly
supported or suspended during the
entire installation process to prevent
connection failure or damage to
bulkhead fittings.
DO NOT
COMPACT
BACKFILL
concrete floor
Interceptor
Interceptor
Interceptor
suspended installation
pipe supports
Interceptor
Interceptor
Interceptor
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