STAAR (Smart Trickling Anaerobic/Aerobic Recirculating) filter systems from SeptiTech, a subsidiary of Bio-Microbics use an enhanced, unsaturated media filter technology for the equalization and clarification process to treat high-organic loads that integrate with other technologies and accessories. They also maintain low levels of Nitrate-N, with all below-grade components that fit in readily available concrete, plastic or fiberglass tanks. The smart controller recognizes situations dealing with peak, low, intermittent or no-flow conditions, allowing the system to go into a sleep mode that will dial down activity and eventually shut all power off until normal flow conditions are detected. This allows the system to achieve lower operating costs and power requirements. 800/318-7967; www.septitech.com.