Answer to: What does water under pressure message mean?Just noticed this string and want to save people from going through what I went through the past 6 months. DO NOT USE SOFTENED WATER IN THE KEURIG 2.0 SYSTEM! I had months of incomplete cups and grounds in my cup – Keurig replaced my machine and I had the same issues with the new machine. I reached out to Keurig one last time and was finally told that the sodium in softened water has a negative affect on the pumping system in the 2.0 brewing machines. They recommended I switch to spring water – first running spring water through the system a few times before trying to brew a cup of coffee. I have done this for a week now and have not had one issue! It appears that this issue was just recently discovered and they are now educated to give this advice at their customer support centers. FYI – most water filters do not remove sodium from softened water.