Because the bumper and slider make the most contact with the area where you place your mouth, they will need to be cleaned the most often. Fortunately, we made them very easy to clean. Just pop them off and toss them in the dishwasher. We recommend doing this about once a week or as needed.
The main cap and flow meter should be washed by hand in the sink with hot water and soap. If you are only drinking water from your cap, then we recommend doing this about once every two weeks or as needed.