Romtec Utilities needs a few pieces of basic information to begin a preliminary pump station design. The design starts with providing the expected peak inflow in gallons per minute. The second piece of information needed is the calculated total dynamic head or the elevation change across the force main. Along with this information, the overall length and internal diameter of the force main is also needed. Finally, the elevation of the deepest inlet line below grade is needed to propose the depth of the sump. This basic information will yield a preliminary design that is typically comparable to the final design in terms of price and supply.