How to Fix a Slow Keurig
Your Keurig should pump about 1 inch of water out of the tank in about 20 seconds. If its way slower or less than that, you have a clog. First, try running vinegar through your Keurig to descale it. If that does not work, here are 4 ways you can try to fix it.
Note, the top picture, with a yellow banner is a video version of this instructable.
Water Input Filter
Unscrew the metal screen from the bottom of the tank, clean with toothbrush and put it back.
Bottom Needle
Take out the Pod cup, pop off the bottom and clean the needle with a paper clip.
Top Needle
Lift lid and clean 3 holes in top needle with a paper clip.
Top Elbow
Lift lid, remove screws, pull off cover, lift plastic ring, pull off tube, and clean out.