Measurement Of Flow Rate
Standard hydraulic devices and procedures using calibrated constants can measure the rate of sewage flow. However, it is essential that no device shall offer such an obstacle to the flow of sewage so that suspended or floating solids are caught or restrained, obstructing the flow. Devices used for flow measurement include gravimeter and volumetric containers, orifices, weirs, pipe bends, nozzles, velocity meters, and Palmer-Bowlus flumes and Pearshall flumes.