If the fishing rod is not broken, but just needs some cleaning, then all you may need is some fresh water and a brush. Gently clean the entire rod with the brush, making sure to get in between the cracks and crevices. Once it’s clean, rinse off the rod with freshwater and let it air dry. If your fishing rod is broken, you will need to take it to a professional to have it fixed. They will be able to replace any pieces that are missing or damaged and get your fishing rod back up and running like new.