I was only getting 2 ounces of coffee to come out. I did not have the keurig cleaner, which cleans the top pin. so i found a small oxy salad dressing container made out of silicon, filled it with water and closed the top part of the unit down on it a few times, creating a suction. then i took a very thin sewing needle and worked it into the pin hole, and re-did the suction routine. i noticed coffee grounds in the water. repeated several times and now my kuerig works good as new. i get 8 ounces of coffee in less than a minute.