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Water and filters
Test your water and set the hardness
The 2026 manual puts a hardness test strip in the box; the steps are from the Get Started guide and the manual's menu.
- Dip the strip in tap water for 1 second.
- Shake it and wait about a minute.
- Count the red squares: 1 to 4.
- Hold the steam button for 10 seconds to enter the menu.
- Press the 2-cup button (water hardness).
- Press 1-cup for soft, 2-cup for medium or steam for hard.
Bands from the 2016 and US manuals: soft under 10 °dH (under 180 mg/l), medium 10 to 20 °dH, hard over 20 °dH (over 360 mg/l).
Fit the softener filter
The filter is optional: "not included, available for purchase at authorised service centres" (the manual, which gives EAN 8004399327252). De'Longhi's shops sell it as DLSC002. Steps from the Get Started guide.
- Rinse the new filter with about 0.5 litre of tap water.
- Turn the calendar disc to show the next 2 months.
- Fill the tank and hold the filter under the water for about 10 seconds, tilted to let the air out.
- Push it into its housing in the tank as far as it goes.
- Refit the lid and the tank.
It lasts about 2 months in normal use, or 3 weeks at most if the machine stands unused with it fitted. Take it out before descaling.