If you have an oscillating sprinkler system, it’s important to clean it regularly. This will help keep the system running smoothly and prevent water damage. To clean the sprinkler system, first remove the filters. Then, unscrew the sprinkler head from the body. Pour a pot of boiling water onto the head and unscrew it again. Pour a pot of cold water onto the head and screw it back on. Turn on the sprinkler and wait until it starts spraying water. Use a plunger to suction onto one end of a hose and pull until all of the water is drained from the system.