Slow flow rate from Gaggia Classic group head (pawb.social)

submitted 1 month ago by [email protected] to c/[email protected]

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I've had a Gaggia Classic for a few years and over the last few months I've been having issues with the flow from the group head.

I think it might be an issue with the solenoid valve. There was some guidance I saw online about flicking rapidly from the group head to the steam wand, as this forces water through and clears any blockages. And yes this does seem to work - if I rapidly flick the switches the water suddenly flows a lot faster from the group head. But it's not a permanent fix.

I've descaled it several times. Is there something else I can do, or does the valve need replacing?

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[-] [email protected] 2 points 1 month ago

https://youtu.be/0ipvBdWaVzQ

I used this, but I’ve installed the shades pid, shades pressure gauge, and a dimmer mod so I was fairly familiar with the innards.

Consumer carbon filters don’t really remove enough hardness to be effective. For convenience I use distilled gallons and third wave espresso packets. There are cheaper methods though.

this post was submitted on 21 May 2025

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