Water and filters

What water to use

The manual's water advice:

• Hardness: up to 4 °dH (German degrees), about 71 ppm. Soft, drinkable, not fizzy.
• Filter cartridge in the tank's filter adapter: ECM AC100027-00 (89445.K on 2024 machines). Change it as its own instructions say; the Filter Reminder counts the litres.
• Chlorine: for weak crema and body, ECM suggests a chlorine filter.
• On mains: Clive Coffee adds a softener and filter as well as the pressure regulator.

Test your water with Water hardness test strips. Clive Coffee suggests 35 to 85 ppm, ideally about 50.

Fit a filter cartridge

From the manual.

1. Open the cup warming tray.
2. Lift out the tank.
3. Soak the new cartridge well. The manual: a dry cartridge stops the machine drawing water.
4. Fit it in the tank's filter adapter, as the cartridge's own instructions show.
5. Put the tank back in its guides and close the tray.
6. In Advanced User Settings, set the Filter Reminder to the cartridge's litres, and reset it at each change.

ECM Synchronika II: every job