We've made the
How-To articles posted on the Gaggia User's Group public for the first time. Most of these articles apply to any espresso machine: descaling, Styrofoam cup test, water debit test, etc. A few apply only to Gaggia machines, such as the one about adding a Classic OPV.
If anyone can think of other How-To topics that even remotely apply to Gaggia's let me know and I'll consider adding them.
BTW: These are made public because the Gaggia User's Group is all about helping folks get the most from their espresso machines. If it saves them a few bucks in the process, that's icing on the cake!