How do I properly clean and maintain the water reservoir of the Keurig K155 coffee maker?

To properly clean and maintain the water reservoir of the Keurig K155 coffee maker, regularly remove the reservoir and wash it with warm, soapy water. Rinse thoroughly and allow it to dry completely before reattaching it to the coffee maker. Additionally, descale the coffee maker every 3-6 months to prevent mineral buildup and ensure optimal performance.