Looking for some help with extraction process
My Silvia Pro X is about two years old, and after taking several months off from use, I started pulling shots again this month after replacing some dirty silicone tubing in the machine. Unfortunately, the extraction time is now beyond inconsistent. The first pull after turning the machine on is often too fast (30g of coffee in well under 30 seconds), and the remaining ones are either normal or, as shown in the video, painfully long—well over 45 seconds. I did a full backflush before taking these videos, and it hasn’t done anything to fix the situation.
Any ideas? Is this a blockage somewhere or perhaps something different? Could my switching of the silicone tubes have caused the problem?