How to descale and maintain Gaggia Classic Espresso Machine

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How to descale and maintain Gaggia Classic Espresso Machine, Tools: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Tools

Here are the tools you need (from left):
1 flathead screwdriver
2 allen keys / allen wrenches, one small, one larger
13mm thin spanner / wrench
2 #1 Philips head screw drivers (one short, one long).
One adjustable spanner / wrench

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