ON Calc Pump is a complete, simple and effective tool to carry out by hand all the neccesary calculations of hydraulic pump installations that are decisive when it comes to correctly sizing the installation; head losse,sizing of the pipe diameter,speed of fluid, etcPump control settings like rpm of motor, impeller adaptation according to the requirement of the pumping installation both in flow and in height.In summary, an app that will facilite field work related to this sector.