Mineral & Steam

ACS Vesuvius

MakerACS
BoilerDual boiler
Brew boiler0.8 L
Steam boiler2.3 L
Water tank2.9 L
Plumb-inSwitchable (mains connection fills the internal tank)
Voltage (US)115V version
Maker's water filterNot listed

What water does this machine require?

ACS hasn't published a limit our check can use for this machine yet, so the check can't give it a result. Whatever the maker does say is quoted below.

Will my water work with this machine?

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Check my water for this machine

The maker's water guidance

What the maker says this machine needs from its water. This is machine care, not drinking-water advice.

From ACS's guidance for this model.

  • Water filter

    “The use of a water softer or filtration system, is advised.”

    ACS Vesuvius owners manual (userguide version 12, 'Manuale Vesuvius 2023'; PDF created 2023-09-21), acs-espresso.it, Mains Water Connection (page 5). Source (opens in a new tab), saved October 28, 2026.

  • Water type

    “Only water suitable for espresso machines should be used e.g. filtered or treated.”

    ACS Vesuvius owners manual (userguide version 12, 'Manuale Vesuvius 2023'; PDF created 2023-09-21), acs-espresso.it, Maintenance (page 22). Source (opens in a new tab), saved October 28, 2026.

Where to buy

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Specs read from the maker's or seller's page.