Water hardness in Porto-Vecchio
3.1 °fH soft
Tap water in Porto-Vecchio is soft: 3.1 °fH (31 mg/L · 1.8 gpg · 1.7 °dH).
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 2A247 (2026-08) · data checked 2026-10-19
Range across supply zones: 27–49 mg/L.
Porto-Vecchio (Corse-du-Sud) is served by the Société des Eaux Corses (Kyrnolia-Sud). Median hardness is 31 mg/L as CaCO₃, in a range of 27 to 49 mg/L, so the water is soft. Source: SISE-Eaux health control (ARS, commune 2A247), August 2026.
TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
Water data
| Total hardness | 3.1 °fH |
|---|---|
| Utility | Sté Des Eaux Corses (Kyrnolia-Sud) |
How Porto-Vecchio compares
- Tap water in Porto-Vecchio is 87 % softer than the median of the 33641 cities we track in France (23.9 °fH).
- By hardness it ranks 32296 of 33641 in France (1 = hardest); 4 % of these cities have softer water.
- In Corse-du-Sud it is number 88 of 123 cities; the regional median is 4.7 °fH.
- Nearest city with clearly softer water: Sotta, 9 km away (1.9 °fH).
- Nearest city with clearly harder water: Foce, 18 km away (16.7 °fH).
Ranking of the hardest and softest water in France →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Porto-Vecchio
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 2 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Porto-Vecchio water hard or soft?
It is soft: 31 mg/L as CaCO₃ (1.8 gpg, 1.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Porto-Vecchio safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
How many grains per gallon is Porto-Vecchio water?
1.8 gpg, equal to 1.7 °dH, 3.1 °fH or 31 mg/L calcium carbonate.
What dishwasher salt setting should I use in Porto-Vecchio?
For 31 mg/L (1.7 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Porto-Vecchio?
No. With soft water a softener adds nothing.
Source
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 2A247 (2026-08). Method: own measurement. Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 2A247 · Outdated figure? Tell us