Enjoying my Evo Leva so far. Two questions I would like to put for this knowledgeable forum.
I have my Evo plumbed. Without using the pump. Line pressure about 2.5 bar. I am brewing at 97 coffee boiler and 89 group. When the machine idles for say an hour and after that hour I do a flush, the water rushes fast out of the group. Not the usual “rain” A flash boil with steam. If instead of a flush, I pull a shot, the puck gets all distorted at the top. I wonder, if all parts are pid controlled and I stay at max97, no water should ever be reaching 100 degrees. So why a flash boil?
Other thing is the coffee boiler takes about 2 minutes after a shot to recover to 97. Goes first slowly down to 95 and then after about two minutes quick to 97 and stays there. Two minutes is a bit long if making back to back shots. There is of course cold water from the mains entering the coffee boiler that could be the culprit. I am using the latest advised pid configuration. Maybe I can speed up the recovery by changing the pid setting. But does anyone have any suggestion what exactly to change in which direction?