Drain and Rinse
Unplug the array, drain the foot bath and rinse all the parts of the array and the basin. Both parts should be rinsed thoroughly after each use, before any bacteria or fungus has the opportunity to dry and set into the array.
Cleaning
Use a mild cleaning agent such as liquid dish soap. Mix the cleaning solution in the sink, adding a gallon of water to two squirts of liquid dish soap. Use a brush to get into the cracks and crevices of the array, breaking up any buildup that could potentially grow a bacteria or fungus. Rinse again and let it air dry. If you notice any buildup growing inside of the crevices of the array, use an old toothbrush or other similar utensil to clean inside of the cracks and crevices.
Disinfecting
Disinfecting should also be done after every few uses to kill any bacteria or growth that is not easily washed away with a mild cleaning agent. Purchase a household disinfectant from your local grocery store, or use white vinegar, which is an all-natural disinfectant that is most likely already on hand in the home. Add a gallon of water to the basin, then add one cup of distilled white vinegar. Turn the array on, and let it run its course as you would during a normal foot soaking. When the process is finished, unplug the array and rinse both the array and basin with clear water, then let air dry.