MyFAST HS-STP (High-Strength Sewage Treatment Plant) wastewater treatment systems from Bio-Microbics use an enhanced aeration pretreatment zone. Simple in design and easy to install, they add LIXOR XD Submerged Aeration Systems and MyTEE Grit Vaults as an effective pretreatment zone to reduce BOD and TSS levels for better sludge management in the treatment zone, according to the manufacturer. Engineered to fit most residential and commercial property applications, systems provide alternative wastewater treatment options for those residing outside the reach or in lieu of municipal treatment plants. The system has a 100 percent submerged, fixed-film, packed-bed media bioreactor for low/peak, toxic shock or heavy loading, the maker says, and is ideal for septage receiving stations. 800/753-3278; www.biomicrobics.com.