Orenco Systems, based in Sutherlin, Oregon, designs and manufactures advanced onsite wastewater treatment systems including pressure distribution systems, effluent filters, pump systems, and engineered drainfield components. Their Biotube effluent filters are among the most widely installed septic tank filters in the industry. Orenco also manufactures recirculating sand filter systems, advanced treatment units, and the AdvanTex textile media treatment systems. Their products are designed for both residential and commercial onsite wastewater applications.