Inlet manifold
(typ. by others)
Outlet manifold
(typ. by others)
Two-Way cleanout
tee (see Detail A)
(typ. by others)
Two-Way cleanout
tee (see Detail B)
(typ. by others)
Two-way cleanout
extended to grade
recommended before
and after each unit
if units are below grade
(typ. by others)
Detail "A"
Flow from
fixtures
Flow to units
Two-Way
cleanout tee
(by others)
Detail "B"
Flow from units
Flow from units
Two-Way
cleanout tee
(by others)
Flow to sanitary
sewer
GB-250 (2 Series)
100 GPM, 2,152 Grease Lbs.
Two-way cleanout
extended to grade
recommended before
and after each unit
if units are below grade
(typ.)
All piping between
units to be supplied
by others
GB-250 (3 Series)
100 GPM, 3,228 Grease Lbs.
GB-250 (4 Series)
100 GPM, 4,304 Grease Lbs.
Inlet Diffuser Modifications for
Secondary Units of series
interceptor system
Remove face
of snout with saw
Cut off top 1/2" of
diffuser air relief
GB-75 (2 Series)
75 GPM, 1,232 Grease Lbs.
Parallel Installation of Multiple Grease Interceptor Systems
CAUTION: For Flow Rates of 100 GPM or Greater
(GB-75, GB-250 only)
NOTES:
Schier grease interceptors are rated and manufactured with an internal flow control system already in
place. They do not require an external flow control system or air intake vent.
Schier grease interceptors are not to be installed in any other manner except as shown. Consult local
codes for separate trapping requirements, cleanout locations and additional installation instructions.
GB-250 (2 Parallel)
200 GPM, 2,152 Grease Lbs.
GB-250 (3 Parallel)
300 GPM, 3,228 Grease Lbs.
GB-250 (4 Parallel)
400 GPM, 4,304 Grease Lbs.
GB-75 (2 Parallel)
150 GPM, 1,232 Grease Lbs.
Flow to units
PARALLEL INSTALLATION OF MULTIPLE GREAT BASIN UNITS
For higher flow rates and higher grease storage requirements.
•
For below or above grade installations follow installation instructions outlined
•
in installation packet.
Units must be piped as shown above to ensure that the units work properly as
•
the system is designed.
The units must be equally spaced to ensure the equal distribution of effluent flow.
•
For systems that are installed below grade it is recommended to install a two-way
•
clean out tee extended to finished grade before and after each unit for line cleaning
purposes.
Hybrid systems combining parallel and series installations are available per written
•
approval from Schier Products.
SERIES INSTALLATION OF MULTIPLE GREAT BASIN UNITS
For lower flow rates and higher grease storage requirements.
•
For below or above grade installations follow installation instructions outlined
•
in installation packet.
Units must be piped as shown above to ensure that the units work properly as
•
the system is designed.
For systems that are installed below grade it is recommended to install a two-way
•
clean out tee extended to finished grade before inlet of the primary and after
the outlet of the final secondary unit and between units if there is a long run of
pipe between units for line cleaning purposes.
When installing units in series secondary unit inlet diffusers need modification prior
•
to install. See details to right.
Hybrid systems combining parallel and series installations are available per written
•
approval from Schier Products.
IMPORTANT!
Series Installation of Multiple Grease Interceptor Systems
(GB-75, GB-250 only)
DATE:
11/1/10
REV:
3 - 11/07/11
GREAT BASIN INSTALLATION, OPERATION
AND MAINTENANCE GUIDE
Schier Products
9500 Woodend Rd
Edwardsville, KS 66111
Tel: 800-827-7119
Fax: 800-827-9664
www.schierproducts.com
Made in the U.S.A
DESCRIPTION:
DWG BY:
TEU
SHEET NUMBER:
5 of 7
MATL:
PE
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF
SCHIER PRODUCTS
. ANY REPRODUCTION IN
PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF
SCHIER PRODUCTS
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
