Irrigation systems are exposed to the elements and are subject to damage and degradation.
Some plastic components are sensitive to ultraviolet light. Be sure to keep plastic pipe and other light-sensitive plastic components buried or covered.
Freezing can also damage pipes and system components. Make sure all sections of the irrigation system can be easily drained when not in use. If irrigation is being considered throughout the winter months, the system should drain after each application.
Rodents and their nesting material can also infest irrigation systems when not in service. Rodents crawl into open pipes and empty tanks. Include animal guards on the ends of all exposed pipe. Be sure to cover the ends of pipes whenever a section of the system is disconnected. Old coffee cans work well for temporary covers on open pipes. Check exposed pipes for evidence of animal damage.
Leaves and other debris can clog sprinklers and emitters. It may be necessary to place screening over holding tanks to keep leaves out of the irrigation system. Landscape plantings near holding basins may need to be modified to reduce clogging.