Flow and effluent monitoring shows the size and speed of flow-in drain and sewer systems, focusing on peak flows following extreme weather events. This information helps with both design (i.e. current hydraulic capacity) or see if repairs are needed .
If there are problems with corrosion, we have to know the nature of the effluent the pipe carries. This will include PH level, temperature and chemical composition e.g. issues such as high calcium or corrosive dissolved substances. A sampling pattern will let us know the range of effluents. Flow and effluent monitoring comes in many forms. The most effective of which is a continuous monitor that send results to a monitoring station. The monitor is fitted in the crown or base of a pipe as appropriate for the sediment levels. Effluent sampling requires manual samples. Ideally taken in a physical and time spread that will enable peak effect capturing.