Environoc 301 from Biodyne Midwest is composed of 100 percent naturally occurring (nonpathogenic or genetically modified) bacteria/fungi selected for degradation of simple/complex organics in wastewater, grease control and reduction of hydrogen sulfide and other odors. It offers 29 strains of fresh, viable and natural microbes, with high plate counts of trillions per gallon. It is designed to keep drainlines and septic systems running optimally, reduce grease buildup and backflow, keep grease in a gelatin-like state and significantly reduce odors. 888/970-0953; www.biodyne-midwest.com.