Water hardness in Dalmine
20 °fH very hard
Tap water in Dalmine is very hard: 20 °fH (200 mg/L · 11.7 gpg · 11.2 °dH).
Source: Uniacque - I parametri del tuo Comune (2026-06) · data checked 2026-10-29
Range across supply zones: 190–230 mg/L.
3 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °fH | mg/L | ||
|---|---|---|---|
| Fontanella - Cimitero | 19 | 190 | very hard |
| Fontanella - Frazione Mariano | 20 | 200 | very hard |
| Fontanella - Municipio | 23 | 230 | very hard |
Uniacque's municipal parameters page (June 2026) reports 200 mg/L CaCO₃ (20 °f) for a sampling point in Dalmine, with a range of 190 to 230 mg/L (19 to 23 °f). That is very hard water. The reading comes from a single fountain, so other points may differ.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 20 °fH |
|---|---|
| ca_mg_l | 67 |
| mg_mg_l | 16 |
| Utility | Uniacque SpA |
How Dalmine compares
- Tap water in Dalmine is 6 % softer than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 350 of 629 in Italy (1 = hardest); 44 % of these cities have softer water.
- In Lombardia it is number 116 of 142 cities; the regional median is 24.9 °fH.
- Nearest city with clearly softer water: San Giuliano Milanese, 38 km away (14.3 °fH).
- Nearest city with clearly harder water: Basiano, 13 km away (25.2 °fH).
Ranking of the hardest and softest water in Italy →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Dalmine
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 11 °dH |
| AEG / Electrolux | 3 |
| Beko | 3rd |
| Hoover | S2 |
| 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 Dalmine water hard or soft?
It is very hard: 200 mg/L as CaCO₃ (11.7 gpg, 11.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Dalmine 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 Dalmine water?
11.7 gpg, equal to 11.2 °dH, 20 °fH or 200 mg/L calcium carbonate.
What dishwasher salt setting should I use in Dalmine?
For 200 mg/L (11.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Dalmine?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Uniacque - I parametri del tuo Comune (2026-06). Method: figure published by the water supplier. Uniacque - I parametri del tuo Comune · Outdated figure? Tell us