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How much scale should I clean out from the boiler? (lemmy.zip)

submitted 1 month ago by TacoEvent@lemmy.zip to c/coffee@lemmy.world

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Removed the boiler from my Gaggia Classic and it was a humbling experience to learn just how much scale can build up even on RO water.

Ultimately wasn’t able to get the boiler looking squeaky even after 2 hours of sitting in descale solution. Is that probably fine? I just rinsed and brushed it until I didn’t see any more visible scale flakes coming off. Flow is back to normal as far as I can tell.

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[–] TacoEvent@lemmy.zip 2 points 1 month ago

Good idea on testing the water. I had it installed and just assumed the best.

I think most of the scale must’ve come from the first 2 years when I didn’t use RO water. My kettle doesn’t have any scale in it either and I haven’t had to descale it once since we started using RO water.