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ON-THE-FLOOR DETAIL

(OS-100 SHOWN)

SHOP

FLOW

FLOW

FLOW

FLOW

Max. load

2,500 lb.

OS-25 Shown with riser

Rebar

Riser (sold separately)

16" Max.

VENT

If concrete slab falls within body of unit, reinforce with rebar,

extending 6" beyond footprint of unit to connect main floor slab.

Concrete

Crushed aggregate or sand backfill

Native soil

Striem

3100 Brinkerhoff

Kansas City, KS 66115

Tel: 913-222-1500

Fax: 913-291-0457

www.

striemco.com

Made in the U.S.A

INTERIOR BELOW GRADE INSTALLATION INSTRUCTIONS

(OS-15, OS-25)

  

EXCAVATION

Install unit(s) as close as possible to fixtures being serviced.

1.

Width and length of excavation shall be minimum 6" greater 

2.

than the tank on all sides.

Depth of excavation shall be 6" deeper than tank bottom.

3.

Set the tank in well-packed crushed aggregate #7 backfill material 

4.

approximately 3/4" size rock, or sand, with no fines.

CONNECTIONS

Connect waste piping to the unit.     

1.

SET OIL DRAW OFF

If unit is ordered with optional oil draw off connection, see sheet 5 for correct settings.   

1.

BACKFILLING & FINISHED CONCRETE SLAB

Before backfilling and pouring of slab secure cover(s) to the unit(s). 

1.

Backfill using crushed aggregate #7 backfill material approximately 3/4" size rock or sand 

2.

with no fines.

3.   Place 6" aggregate base under slab.

Note

Models OS-15 and OS-25 cannot be installed flush with floor. A riser must be used for below 

grade installations.

INTERIOR ABOVE GRADE INSTALLATION INSTRUCTIONS

(OS-15, OS-25, OS-35, OS-50, OS-75, OS-100, OS-500)

  

Install unit(s) as close as possible to fixtures/drains being serviced.

CONNECTIONS

Connect waste piping to the unit.     

SET OIL DRAW OFF

If unit is ordered with optional oil draw-off connection, see sheet #5 for correct settings.  

VENT

OS & OCT SERIES INSTALLATION, 

OPERATION AND MAINTENANCE GUIDE

ECO:

8/15/18

MJ

REV:

DATE:

DWG BY:

DESCRIPTION:  

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF 

STRIEM, LLC. 

ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF 

STRIEM, LLC. 

IS 

PROHIBITED.

NOTES:

Striem oil separators 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.

Striem oil separators 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.

SHEET NUMBER: 

4 of 7

Summary of Contents for OS-15

Page 1: ... lifetime of the plumbing system in which the Products were originally installed and will at its option agree to repair replace or supply credit to the original purchaser This warranty does not cover damage caused by the Products normal usage or wear and tear nor does it cover damage from naturally occurring phenomenon including but not limited to UV freeze related damage or natural disasters This...

Page 2: ...to exceed no more than 6 months TROUBLESHOOTING TIPS In the case of a clog inlet and outlet diffusers may be removed for line cleaning Slower than usual drainage may indicate the need to pump clean oil separator Units with 6 connections have a removable plug on the back of the diffuser as the diffuser itself is not removable Always take proper care to ensure a safe and healthy environment while cl...

Page 3: ...6 deeper than tank bottom 3 Set the tank in well packed crushed aggregate material 4 approximately 3 4 size rock or sand with no fines When setting OS 75 2 and the OS 500 all units must be level Anchor kit is recommended for installations in high water table conditions to 5 prevent float out To be determined by specifying engineer If necessary order optional Anchor Kit See detail on this sheet BAC...

Page 4: ... unit s 1 Backfill using crushed aggregate 7 backfill material approximately 3 4 size rock or sand 2 with no fines 3 Place 6 aggregate base under slab Note Models OS 15 and OS 25 cannot be installed flush with floor A riser must be used for below grade installations INTERIOR ABOVE GRADE INSTALLATION INSTRUCTIONS OS 15 OS 25 OS 35 OS 50 OS 75 OS 100 OS 500 Install unit s as close as possible to fix...

Page 5: ...work properly the oil draw off must be adjusted to meet the correct operating height for the flow of the unit The oil draw off unit leads separated oil into an oil drainage line and collection tank where it can be taken care of properly See OCT Series Once the Oil Separator is installed an operating water level must be established Remove covers and run water through separator at maximum flow rate ...

Page 6: ...lled into the main unit this new line will end up at the top of the gasket and will aid in re assembly See Figure 3 IMPORTANT Before the next step 8 Make sure both diffusers are installed inside the main unit at the appropriate locations and check if there needs to be any flow control adjustment on the inlet diffuser Refer to sheet 2 of the installation instructions for flow control adjustment Ref...

Page 7: ...nge with 4 bolt notches faces down against the unit See Figure 1 Push riser into ring until it stops about 1 inch See Figure 2 4 Measure the distance from the top edge of the riser down to the finished floor Make sure to account for any future tile work 5 in your measurment See Figure 2 Remove riser from ring Take measurement from step 5 from the BOTTOM of the riser upwards towards the top of the ...

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