How do I descale my K-Express Essentials?

Pour the entire bottle of Keurig® Descaling Solution into an empty water reservoir, then fill the empty bottle with water and pour it in. Place a large mug on the drip tray and press and hold the 6 oz and 10 oz buttons together for 3 seconds to activate Descale Mode. Press the 8 oz button repeatedly until the ADD WATER light illuminates, then refill with fresh water and press the 8 oz button repeatedly until the DESCALE notification turns off. (Page 5)