Water hardness in Mirano
28.5 °fH very hard
Tap water in Mirano is very hard: 28.5 °fH (285 mg/L · 16.6 gpg · 16 °dH).
Source: Veritas, durezza acqua distribuita, semestre fino a marzo 2026 (2026-03) · data checked 2026-10-20
The tap water in Mirano comes from Veritas, which relies on groundwater wells and tops up with water from the Sile river treated at the Ca' Solaro plant; the wells tap carbonate-rich alluvial gravels. The reported figure is 285.0 mg/L CaCO₃, which counts as very hard water. Kettles, steam irons and dishwashers collect scale fast at this level, and a softener is a common answer.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 28.5 °fH |
|---|
How Mirano compares
- Tap water in Mirano is 34 % harder than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 126 of 629 in Italy (1 = hardest); 80 % of these cities have softer water.
- In Veneto it is number 11 of 37 cities; the regional median is 26.9 °fH.
- Nearest city with clearly softer water: Mogliano Veneto, 13 km away (20.3 °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 Mirano
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 16 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| LG | H3 |
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 Mirano water hard or soft?
It is very hard: 285 mg/L as CaCO₃ (16.6 gpg, 16 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Mirano 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 Mirano water?
16.6 gpg, equal to 16 °dH, 28.5 °fH or 285 mg/L calcium carbonate.
What dishwasher salt setting should I use in Mirano?
For 285 mg/L (16 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Mirano?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Veritas, durezza acqua distribuita, semestre fino a marzo 2026 (2026-03). Method: figure published by the water supplier. Veritas, durezza acqua distribuita, semestre fino a marzo 2026 · Outdated figure? Tell us