Pump Stations: Hatch Sizing

Bryan Bach Blog, Jensen Water Resource Blog, Pump Stations

So we now know what the minimum volume of the wet well should be to handle all inflowrates. We now need to select our wet well shape and size. This is an iterative process. A good place to start is by sizing the minimum hatch dimensions as this sets the minimum well diameter. First determine the horizontal dimensions of the pumps by referring to the technical information sheets for your selected pump. Some important dimensions are shown in the following example: The minimum length of the hatch is the distance between where the guide rail bracket mounts onto the hatch edge …