![Case Study: Passive Treatment System Meets Efficiency Goals](https://cole-plumbermag.imgix.net/https%3A%2F%2Fwww.plumbermag.com%2Fuploads%2Fimages%2Feljen_corporation_case_study_180216_140502.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=13ce2ce0506a1b5637bb51c4fa57793f)
A homeowner building a new energy-efficient three-bedroom home in Riverton, Illinois, was looking for a low-maintenance, non-mechanical, septic treatment solution that used little to no electricity. Several mechanical ATUs were proposed, but the homeowner wanted a treatment...