Hello and sorry for this message in english but I am french... I have a CVA 2660 coffee machine and when I make a coffee a lot of water also flows from the steam valve although it is closed. It is still possible to make a coffee but this leak reduces the pressure in the expresso brew unit and coffee is not as good as expected and also shorter than expected. You can see a video there : Links für Gäste nicht sichtbar! I was thinking in an issue in the ceramic valve that should close all water paths to steam valve and decompression vessel but not totally sure. If someone can help me !