Orenco manufactures both residential and commercial tertiary treatment systems. The Advantex product line requires a septic tank before the unit and a dispersal field after. The unit recieves effluent from the septic tank which is trickled through a moist, porous media. Microorganisms growing in the media remove the impurities from the effluent. The effluent is recirculated an average of 4 times before being sent to the dispersal field.
These units are well suited for replacement systems as well as new construction where a smaller dispersal field is required.