The EcoCycle sequencing batch reactor (SBR) combines DynaPhase Control technology with efficient treatment schemes designed to provide performance and reliability. The SBR utilizes true batch operation that produces high-quality effluent because no raw wastewater enters the basins during the settle and decant process steps. A flow control manifold is used to distribute raw influent across the floor of the tank during fill periods to ensure intimate contact between the raw wastewater and the settled biomass.