Amberale then flush the whole thing a couple of times with a full charge from the pneumatic reservoir.
Oh, I think I understand now. Are you saying that, with the pneumatic assist, it can push all the fluid out and then you flush a couple of times rather than the usual 10-12 times?
But if this is the case, isn’t this equivalent to backflush once or twice, leave it in the group to do its work, dump the contents of the portafilter, and then flush a couple of times afterwards?
I’m struggling to understand the benefits of the pneumatic assistant (or spring assistant) in the grand scheme of things - aside of minor convenience.