Our Products in Idaho State
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Our Products available in Idaho:
OSCAR-II Large Soil Absorption System Design Manual-Idaho
Septic systems with design flows over 2500 gallons per day (Large Soil Absorption Systems) have a different set of regulations from those design flows under 2500 gallons per day. The OSCAR-II system is no different. Because of the differences in regulations Lowridge has developed a design manual for Larger systems.
A unique design feature of the Larger OSCAR-II systems is that they are operated by small 1/2 hp, 110 volt pumps. A duplex set of pumps and one headworks can operate a system design flow of 5600 gallons per day. If a larger flow is need then an additional duplex pumping station could be installed in the same or different pump tank.
The Orchard Combat Training Center’s (OCTC) shower facility is an example of how a single duplex pump station can facilitate a high daily flow. Although the OCTC facility has a design flow of 2200 gallons per day, it is a good example of how a Large system is laid out. The case study of this facility can be found here.
The OSCAR-II system (Onsite Sand Coil Area Recharge) has been developed and approved for use in Idaho with a little as 12” of soil above the restrictive layer or water table. The OSCAR-II is an at-grade onsite sewage treatment and dispersal component dosed with septic tank effluent. The OSCAR-II is comprised of a 12” layer of medium sand media and a series of custom manufactured 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 covered with another 6” of sand media. No other cover material is needed.
The OSCAR-II system is comprised of a single compartment septic tank, a discharge tank, a reverse flush headworks, and the OSCAR unit. The septic and discharge tank must be on the approved list (TGM Section 5.2 Approved Septic Tanks) and IDAPA 58.01.03.007.07.
The OSCAR unit can be designed with two coil options: OS-50 and OS-100. The OS-50 coil is a 5’ diameter coil, rated at 50 gpd. The OS-100 coil is a 7’ diameter coil, rated at 100 gpd.
For complete design parameters download the design manual from the link below. For details on how to design or become listed as a certified installer or maintenance provider, simply review the pertinent training video on our “Training Video” page- choose the Idaho icon. Then, contact Lowridge and we’ll walk you through the process.
Installer’s Design Manual
OSCAR-II Large System Design, 2020
OSCAR-II Design Manual, February 2019
OSCAR-II Install Manual July 2018
OSCAR-II O&M Manual, August 2018
OSCAR-II Owner’s Manual, January 2018