Stock Tank Mixing Spring 2011 Overview The Spring 2011 Stock Tank Mixing Team is tasked with improving the current stock tank mixing system that is currently being implemented within AguaClara plants. We are currently running experiments with aluminum sulfate (alum), polyaluminum chloride (PACl), and water. The team's objectives include determining the range of acceptable concentrations the stock solution can be, analyzing and improving the efficiency of the existing mixing system, and designing a new mixing system for use on future plants. Thus far, we have conducted experiments testing different ranges of concentrations with alum, designed several types of mixing systems, and begun small scale testing one of the mixing system designs. | 
