The PM-1000D provides a fully automated, environmentally friendly and low-cost way to manage standing wash water found in collection pits, tanks or sump drains. A module that incorporates: an air pump; diffuser stones, microbes and nutrients injection system with timer, it is designed to be integrated into most wash waster treatment systems utilizing aeration and automatic injection of a highly effective microbial agent (BioStax 1800) for eliminating oils, greases and other hydrocarbons and organics typically found in collection pits or sump drains.