8GETTING STARTEDPlug the cord into an electrical outlet. If the outlet iscontrolled by a wall switch, be sure it is turned on.Preparing the ReservoirRemove reservoir and cover from base. Fillthe reservoir with lukewarm water. Replace thereservoir over the base and press down firmly.Inserting and Removing TipsInsert tip into the center of the knob at the top ofthe Water Flosser handle. The coloured ring will beflush with the end of the knob if the tip is correctlylocked into place. To remove tip from the handle,press the tip eject button and pull tip from handle.