Rancilio Silvia Pro X

MakerRancilio
BoilerDual boiler
Brew boiler0.3 L
Steam boiler1 L
Water tank2 L
Plumb-inNot listed
Voltage (US)120V
Maker's water filterNot listed

What water does this machine require?

Rancilio 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.

Shown, but not used to decide (6)

Will my water work with this machine?

Add your water from a test strip, a report or your city's numbers, and we'll check it against the maker's limits above. It stays in this browser.

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 Rancilio's guidance for this model.

  • Water filter

    “Fill the water reservoir (ca. 2 litres) and add the water softener”

    Rancilio SILVIA PRO Installation and User Manual (file MAN_SilviaProX-2021-07; Rancilio PDF hosted by JetBlack Espresso, Australia), Installation step 2. Source (opens in a new tab), saved October 22, 2026.

  • Water filter

    “Allow 8 h to elapse for water to be softened”

    Rancilio SILVIA PRO Installation and User Manual (file MAN_SilviaProX-2021-07; Rancilio PDF hosted by JetBlack Espresso, Australia), Installation step 2. Source (opens in a new tab), saved October 22, 2026.

  • Total dissolved solids (TDS): 30–150 ppm

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • Total hardness: 2–3 gpg

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • pH: 6–8

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • Chloride: up to 0 ppm

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • Chloramine: up to 0 ppm

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • Silica: up to 5 ppm

    “are the water quality guidelines we recommend you follow for both the sake of your machine, and your taste buds... Total Dissolved Solids (TDS): 30-150 ppm (parts per million) Total Hardness: 2-3 gpg (grains per gallon) pH: 6-8 Chloride: 0 ppm Chloramine: 0 ppm Silica: <5 ppm”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water quality guidelines list. Source (opens in a new tab), saved October 28, 2026.

  • Very pure water

    “Please note that you should never use distilled or reverse osmosis water without some sort of mineral blend-back or a mineral packet!”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water options section. Source (opens in a new tab), saved October 28, 2026.

  • Very pure water

    “For instance, the Silvia Pro X has a level probe, and water free of minerals will not allow this sensor to function, causing your boiler to overfill.”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), Water options section. Source (opens in a new tab), saved October 28, 2026.

  • Water type

    “NO, not recommended for use in your home espresso machine”

    Rancilio Group North America, "Home Espresso Water Options" (web article, ranciliogroupna.com), FAQ "Can I Use Alkaline Water?". Source (opens in a new tab), saved October 28, 2026.

Where to buy

We may earn a commission when you buy through links on our site. Prices and stock change, so the store's page has the final word. Affiliate disclosure

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