Water hardness in San Donà di Piave
20.7 °fH very hard
Tap water in San Donà di Piave is very hard: 20.7 °fH (207 mg/L · 12.1 gpg · 11.6 °dH).
Source: Veritas, durezza acqua distribuita, semestre fino a marzo 2026 (2026-03) · data checked 2026-10-20
The tap water in San Donà di Piave 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 207.0 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 | 20.7 °fH |
|---|
How San Donà di Piave compares
- Tap water in San Donà di Piave is close to the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 333 of 629 in Italy (1 = hardest); 47 % of these cities have softer water.
- In Veneto it is number 33 of 37 cities; the regional median is 26.9 °fH.
- Nearest city with clearly softer water: Rovereto, 122 km away (13.6 °fH).
- Nearest city with clearly harder water: Cavallino, 17 km away (26.9 °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 San Donà di Piave
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 12 °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 San Donà di Piave water hard or soft?
It is very hard: 207 mg/L as CaCO₃ (12.1 gpg, 11.6 °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 Donà di Piave 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 Donà di Piave water?
12.1 gpg, equal to 11.6 °dH, 20.7 °fH or 207 mg/L calcium carbonate.
What dishwasher salt setting should I use in San Donà di Piave?
For 207 mg/L (11.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in San Donà di Piave?
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