Speed: 1. Prepare the oral irrigator by attaching the tip and filling the water tank. 2. Adjust the water pressure to a comfortable setting. 3. Place the tip in your mouth and maneuver it around your teeth and gums to remove plaque and debris. 4. After use, clean the tip and water tank using the included cleaning brush and pry tools to remove any remaining residue. 5. Store the oral irrigator in a dry place to prevent bacterial growth.