Energy-efficient system treats to NSF Standard 40Problem: A homeowner building a new energy-efficient three-bedroom home in Riverton, Illinois, was looking for a low-maintenance, non-mechanical treatment solution that used little to no electricity. The homeowner wanted a treatment system that performed equally to proposed ATUs but matched the energy efficiency goal of the new home.Solution: A gravity-fed Eljen GSF Treatment System was installed. The system is designed to passively treat wastewater to NSF Standard 40 requirements without using electricity or requiring costly maintenance programs. It was easily installed by Rick Maguire of Maguire Backhoe Co. of Virden, Illinois.Result: The system gave















