Aerated filter system rejuvenates drainfieldProblem: Every home in Glenwood, a 300-home subdivision built in the 1970s in Nebraska, used an individual septic system. At the time, there were no local regulations, and 1,000-gallon concrete tanks were installed and outfitted with 50- to 100-foot drainfields on an old blue clay riverbed with a soil percolation range of 50 to 60 minutes per inch. Throughout the 40 years, many of these systems failed. A large-scale treatment solution was sought.Solution: Nathan Cramer of All American Sewer & Drain found the S.O.S.-Save Our Septic Program through Bio-Microbics. On one of the problem sites that















