In order to keep your bathtub’s massage jets working properly, it’s important to clean them from time to time. Simply fill the tub until the jets are completely submerged, then add dishwashing soap and a touch of bleach to the water. Run the jets for 15 minutes, and then rinse them off by refilling the tub with clean water and running the jets for an additional 10 minutes. You can also scrub the jets with a toothbrush or bottle brush for a deeper clean.