Water hardness in San Giuliano Milanese
14.3 °fH hard
Tap water in San Giuliano Milanese is hard: 14.3 °fH (143 mg/L · 8.3 gpg · 8 °dH).
Source: Gruppo CAP, analisi acquedotto (open data), 2025 Q3–2026 Q2 (2026-06) · data checked 2026-10-19
Range across supply zones: 99–299 mg/L.
San Giuliano Milanese gets its water from the Gruppo CAP network, which draws on wells tapping the aquifer of the Milan plain. Calculated from the utility's readings, hardness is 142.7 mg/L CaCO₃, with readings from 98.7 to 299.1 mg/L, which counts as hard water. Values differ across the area, so check your own address before buying a softener; visible white deposits on taps and shower glass are normal here.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 14.3 °fH |
|---|
How San Giuliano Milanese compares
- Tap water in San Giuliano Milanese is 33 % softer than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 456 of 629 in Italy (1 = hardest); 28 % of these cities have softer water.
- In Lombardia it is number 137 of 142 cities; the regional median is 24.9 °fH.
- Nearest city with clearly softer water: Pomaretto, 101 km away (7.5 °fH).
- Nearest city with clearly harder water: Mediglia, 3 km away (26.3 °fH).
Ranking of the hardest and softest water in Italy →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in San Giuliano Milanese
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| LG | H2 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is San Giuliano Milanese water hard or soft?
It is hard: 143 mg/L as CaCO₃ (8.3 gpg, 8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in San Giuliano Milanese safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
How many grains per gallon is San Giuliano Milanese water?
8.3 gpg, equal to 8 °dH, 14.3 °fH or 143 mg/L calcium carbonate.
What dishwasher salt setting should I use in San Giuliano Milanese?
For 143 mg/L (8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in San Giuliano Milanese?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Gruppo CAP, analisi acquedotto (open data), 2025 Q3–2026 Q2 (2026-06). Method: computed from supplier's calcium and magnesium. Gruppo CAP, analisi acquedotto (open data), 2025 Q3–2026 Q2 · Outdated figure? Tell us