Water hardness in Amboise
6.2 °fH moderately hard
Tap water in Amboise is moderately hard: 6.2 °fH (62 mg/L · 3.6 gpg · 3.5 °dH).
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 37003 (2026-08) · data checked 2026-10-19
Range across supply zones: 26–98 mg/L.
Amboise (Indre-et-Loire) is supplied by Veolia Eau Cge. Median hardness is 62 mg/L CaCO₃, but the spread is wide: 26 to 98 mg/L in the August 2026 measurements. The value therefore depends on when and where the sample was taken.
TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
Water data
| Total hardness | 6.2 °fH |
|---|---|
| Utility | Veolia Eau Cge |
How Amboise compares
- Tap water in Amboise is 74 % softer than the median of the 33641 cities we track in France (23.9 °fH).
- By hardness it ranks 31440 of 33641 in France (1 = hardest); 6 % of these cities have softer water.
- In Indre-et-Loire it is number 270 of 272 cities; the regional median is 24.9 °fH.
- Nearest city with clearly softer water: Saint-Règle, 5 km away (2.7 °fH).
- Nearest city with clearly harder water: Nazelles-Négron, 3 km away (19.2 °fH).
Ranking of the hardest and softest water in France →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Amboise
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 3 °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 Amboise water hard or soft?
It is moderately hard: 62 mg/L as CaCO₃ (3.6 gpg, 3.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Amboise 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 Amboise water?
3.6 gpg, equal to 3.5 °dH, 6.2 °fH or 62 mg/L calcium carbonate.
What dishwasher salt setting should I use in Amboise?
For 62 mg/L (3.5 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Amboise?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 37003 (2026-08). Method: own measurement. Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 37003 · Outdated figure? Tell us