Locate the water tank at the bottom of the device. Extend the tank to the black line. Fill the tank with lukewarm water and close the seal shut.

Choose your water flosser tip. Place it into the top of the water flosser and click it in to secure. Change the tip at any time by pressing the release button at the back of the device.

Place the tip inside your mouth, lean over the sink and turn the unit on by pressing the power button for 3 seconds. Partially close your mouth to minimise water splashing, letting the water flow out of your mouth into the sink.

Aim the tip at the gumline and work your way from your back teeth towards your front teeth, spraying water along the gumline. Floss both front and back of each tooth, pausing briefly between each tooth. Move between speed setting by pressing the power button once.