Roberts video #13. Moving ahead with inspection videos. With the grouphead attached & inverted, I dig out the old portafilter gasket, remove the shower screen, and the piston, as well. Lots of coffee residue, but no mineral build-up. The piston comes out easily. One can never know what will be difficult and what will be difficult.

Follow the complete series here (uncut/unedited - mostly): https://tinyurl.com/Roberts-1982-LaPa...