I have an Expobar BII for a couple of years now. When I first got it I played with the brew pressure untill I had the guage sitting on 10 bar during the shot.
Recently I have noticed that my guage reads about 12 bar during the shot, and when the shot is finished the guages still reads 12 bar untill I manually release the pressure by lifitng the lever half way.
I am fairly sure *that the pressure used to drop back to nothing automatically after the shot. Does this mean somthing is broken or blocked? Or does everyones pressure remain up after the shot?