Strainers and Filters
Many irrigation systems use strainers and filters to exclude small particles from their drip lines. Usually these filters are situated on the edge of the field immediately before the application lines. These filters may be self-cleaning mechanical filters or traditional sand filters. Generally filters do not operate continuously. When not in operation, Dreissenid mussels may settle in the filters and if the filters are not maintained, the fouling may cause operational problems. When carrying out a field inspection, it is a good idea to inspect strainers for presence of shells.