INTRODUCTIONPumping stations are installations comprising pumps and equipment for pumping fluids from one location to another. They are used for a variety of infrastructure systems, such as canal water supply, low-lying land drainage, and wastewater disposal to treatment sites. There are three types of systems related to sanitary pumping stations1) Municipal - These systems are designed to serve a given natural drainage area and are part of the public sanitary sewer system.2) Industrial - They are designed to serve a given industry and generally pump to public sanitary sewers. They are typically owned and operated by industry.3) Residential - These serve either individuals or multi-family complexes. FLOW DETERMINATIONResidential wastewater flow estimation is based on population numbers. The flow rate varies based on daily and weekly cycles, the variation is between 0.5 and 1.5 times the average flow rate. Industrial effluents must be estimated on a case-by-case basis, depending on the type of factory. The amount of leakage water present depends on a number of variables, such as the water table level, local precipitation, soil characteristics and the general condition of underground pipes. It can be estimated in units per unit length of pipeline, for example in kilometers, or in relation to the quantity of wastewater. The determination of the average daily flow is defined by knowing the service area to be provided. This service area must be determined taking into account the present and future aspects of the land area, the increase in population and the size of the sanitary pumping station to be installed. The peak flow rate is then calculated by multiplying the daily average flow rate by the peak factor (g...... middle of paper......(in). The maximum surge pressure, P, is then equal at P =- aV/2.31g.DESIGN CONSIDERATIONSHere are some additional design aspects that should also be considered in the design of a sanitary pump.1) Odor control2) Positive net suction head3) Air valves /blank4) Safety5) Wet well dead zoneCONCLUSIONThe possibility of flooding at the pumping station, with the resulting environmental damage, must be considered. For this reason, wastewater pumping stations have two pumps in backup configuration, with each pump capable of handling peak flow. This means no flooding will occur in situations where a pump is out of order or shut down for service. If the capacity of the pumping station is based on two pumps operating in parallel, a third pump must be provided as a backup..