Nothing much more satisfying than bringing a favored relic back to life and find that it works better than ever before. Replaced boiler, solenoid valve, boiler o-rings, shower holder, shower screen, and group head gasket. After witnessing the degree of corrosion and scaling inside the old aluminum boiler, not only is it now self-evident why the solenoid valve clogged, it is also clear why the Gaggia Decalcifier was a hopeless exercise. Not for nothing, aluminum leaching into your coffee as part of your every morning routine raises serious concerns. Enter rabbit hole here -> Aluminum Poisoning with Emphasis on Its Mechanism and Treatment of Intoxication, Rahimzadeh et alii, © 2022, Wiley Emergency Medicine International, 2022 January, Volume 2022, Issue 1, Article 1480553, 2022.01.11, https://onlinelibrary.wiley.com/doi/10.1155/2022/1480553. And last, but not least, start here with Coffeesection, they have an extensive parts selection, were more than helpful assembling a custom kit for the parts needed and offered the best pricing.