Speed: 1. Remove the tip from the handle. 2. Fill the water tank with warm water. 3. Reattach the tip to the handle. 4. Adjust the water pressure using the mode selector. 5. Lean over the sink and place the tip in your mouth. 6. Turn on the device and close your lips to form a tight seal. 7. Move the tip along your gum line, pausing briefly on each tooth. 8. After use, remove the tip and rinse both the tip and the handle. 9. Allow the unit to air dry. 10. Store the unit with the tip off and the tank empty.