Why Won't My Keurig Duo Brew A Full Pot

My pot side of my duo not brewing completely. Press the blinking Brew button and enjoy. Keurig K Supreme Single Serve K Cup Pod…

Keurig Not Pumping Full Cup

However with a K-Cup inserted the coffee dribbles out very slowly and I only get 12 of a serving. Httpsamznto3wJKQDKWater filter …