Our Products in Washington State

OSCAR-LOWeFLOW System

View or download manuals here.

The OSCAR-LOWeFLOW™ (OS-LF) is a treatment and dispersal system that requires only 12” of soil to restrictive layer, has the smallest footprint of any technology available, and there is NO UV light! The OSCAR (Onsite Sand Coil Area Recharge) is an onsite sewage disposal and disinfection component when used with the LOWeFLOW™ treatment system. The OSCAR is comprised of a 6” layer of C-33 sand media and a series of pre-assembled Netafim Bioline™ drip tubing coils. The sand media is placed on a prepared soil surface. OSCAR coils are then placed on the sand media and then are covered with another 6” of sand media. The sand/soil interface is the discharge point of the treated wastewater. Vertical separation is measured from the original soil surface to the restrictive layer.

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A 500 gpd LOWeFLOW filter. The LOWeFLOW™ system is a recirculating gravel filter with a loading rate of 25 g/ft2/d.

System Description

The OSCAR-LOWeFLOW™ treatment system is comprised of a recirculation filter, a septic tank, recirculation/mixing tank, headworks, discharge/clarifier tank, and the OSCAR unit.
Wastewater is collected in a standard septic tank where gross solids are settled out and primary treatment occurs. Septic tank effluent flows from the septic tank into the recirculation tank. Liquid in the recirculation tank is mixed with treated filtrate from the gravel filter. The mixed liquid is dosed to a drip tubing network called a Coil in the top of the LOWeFLOW ™ filter.

Treated filtrate from the LOWeFLOW™ filter flows by gravity back to the recirculation tank through the splitter valve. The position of the splitter valve determines the flow path of the filtrate. When the liquid level in the recirculation tank is high enough to seat the splitter valve, all of the filtrate passes into the clarifier/discharge tank, otherwise, all of the returning filtrate returns to the recirculation tank. Liquid accumulates in the clarifier/discharge tank. Liquid from the clarifier/discharge tank is timed dosed to the OSCAR coils where final treatment and dispersal occurs.

Design flows of the OSCAR-LOWeFLOW™ system range from 240 gpd to 100,000 gpd.

Treatment Level Expectations

The OSCAR-LOWeFLOW™ system was tested under National Sanitation Foundation’s standard 40 protocol and the Washington State Department of Health’s fecal coliform testing requirements. Average treatment level results for the six month test were:
• 5 mg/l CBOD₅
• 9 mg/l TSS
• 27 fecal coliform colonies/100 ml, MPN
• Turbidity ranged from 1-2 NTU

View or Download Tech Spec Below

OSCAR-LF O & M and Troubleshooting Manual PDF
OSCAR-LF Owner’s Manual PDF
OSCAR-LF Design Manual PDF
OSCAR-LF Install Manual PDF

LFOS Master File DWG
LFOS – EWA
LFOS – WWA
LFOS+1 – EWA
LFOS+1 – WWA
LFOS+1-600 – EWA
LFOS+1-600 – WWA

OSCAR Master File DWG
OS-240-5
OS-300-5
OS-300-5S
OS-300-7
OS-300-7S
OS-360-5
OS-360-5S
OS-360-7
OS-360-7S
OS-450-5
OS-450-5S
OS-480-5
OS-480-5S
OS-480-7
OS-480-7S
OS-600-5
OS-600-5S

www.infiltratorwater.com

IN-LFOS-480 PDF
IN-LFOS-480 DWG
IN-LFOS-750 PDF
IN-LFOS-750 DWG

LOT-HW-.7-RF PDF
LOT-HW-.7-MAN PDF
LOT-HW-.7-RF DWG
LOT-HW-.7-MAN DWG

Roth-LFOS-360-1000E PDF
Roth-LFOS-360-1000E DWG
Roth-LFOS-360-1060 PDF
Roth-LFOS-360-1060 DWG
Roth-LFOS-750-1000E PDF
Roth-LFOS-750-1000E DWG
Roth-LFOS-750-1060 PDF
Roth-LFOS-750-1060 DWG

Control Panel Wiring Diagram

LF2P-RF-OS PDF
LF2P-RF-OS-CW-AUX PDF

Sanitarian’s Check List

Sanitarian’s Checklist

OSCAR II

The OSCAR-II system has been developed and approved to allow virtually any treatment technology to used in conjunction with the OSCAR system. Prior to OSCAR-II the only treatment technology approved for use with the OSCAR system was the LOWeFLOW filter. Now, any other system could be used with the OSCAR.

There are four criteria for which treatment technologies can be used:

  1. Treatment vessel must be on the Washington State Department of Health’s Registered Wastewater Containment Vessel list,
  2. Minimum volume of 1,000 gallons.
  3. The vessel must be on Lowridge Onsite Technologies’ list of approved vessels.
  4. The vessels must have testing results from an ANSI certified wastewater testing facility and can produce effluent quality equal to or less than 100 mg/l CBOD5 and 75 mg/l TSS.

When the treatment technology added to the OSCAR-II unit meets treatment level “B”, only 12” of soil is required under the OSCAR. The combined benefits of the small foot print of the OSCAR and minimal soil depth of systems meeting treatment level “B” provide increased numbers of options available for the onsite community and the public at large.

If you would like to see additional technologies listed have the manufacturers contact us. We are happy to include anyone!

Approved Treatment Vessel List
OSCAR-II Design Manual, August 2018
OSCAR-II install manual August 2018
OSCAR-II O&M manual, August 2018
OSCAR-II Owner’s manual August 2018OS-240-5

OS-II WA tanks. DWG
OS-II WA tanks
Discharge Profile
OS-240-5S
OS-300-5
OS-300-5S
OS-300-7
OS-300-7s
OS-360-5
OS-360-5s
OS-360-7
OS-360-7s
OS-450-5S
OS-480-5
OS-480-5s
OS-480-7
OS-480-7s
OS-600-5
OS-600s-5
OS-600-7
OS-600-7s

Control Panel Wiring Diagram

LF1P-RF-BLWR

LOWeFLOW-UV

View or Download Tech Spec Below

2016 Salcor Manual PDF

LOWeFLOW-UV O & M and Troubleshooting Manual PDF
LOWeFLOW-UV Owner’s Manual PDF
LOWeFLOW-UV Design Manual PDF
LOWeFLOW-UV Install Manual PDF