In our project water is taken from sewage yard to the first stage of treatment stage by using screen &grit chamber then the water enter to balance tank that feed Aeration tank at which the water exposed to air by using air blowers and diffusers then the water enter settlement tank at which the water being stable until deposition occur at which the impurities being at the bottom of tank and the clean water at the top of tank , the next stage of treatment in the chlorine tank after this stage the water enter the pump that deliver the water to multi media filter that filtrate the water by using sand , then the water enter to balance tank that deliver the water to output line by using pumps.