How to descale and maintain Gaggia Classic Espresso Machine

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

Use a 13mm spanner / wrench to hold the inside part still while you loosen the external connector.
This step is much easier if you move the pump out of the way first (see step 9).

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