Water hardness in Moissac
13.7 °fH hard
Tap water in Moissac is hard: 13.7 °fH (137 mg/L · 8 gpg · 7.7 °dH).
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 82112 (2026-08) · data checked 2026-10-19
Range across supply zones: 133–141 mg/L.
Water in Moissac (Tarn-et-Garonne) is supplied by Cie De L'Eau Et De L'Ozone - Veolia and a joint drinking-water authority. The ARS health-control data (SISE-Eaux, August 2026) give a measured hardness of 137 mg/L CaCO₃, which is hard, with values from 133 to 141 mg/L.
TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
Water data
| Total hardness | 13.7 °fH |
|---|---|
| Utility | Cie De L'Eau Et De L'Ozone - Veolia; Syndicat Mixte D'Eau Potable |
How Moissac compares
- Tap water in Moissac is 43 % softer than the median of the 33641 cities we track in France (23.9 °fH).
- By hardness it ranks 25695 of 33641 in France (1 = hardest); 23 % of these cities have softer water.
- In Tarn-et-Garonne it is number 151 of 195 cities; the regional median is 16.9 °fH.
- Nearest city with clearly softer water: Fronton, 38 km away (10.2 °fH).
- Nearest city with clearly harder water: Durfort-Lacapelette, 11 km away (25 °fH).
Ranking of the hardest and softest water in France →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Moissac
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| 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 Moissac water hard or soft?
It is hard: 137 mg/L as CaCO₃ (8 gpg, 7.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Moissac 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 Moissac water?
8 gpg, equal to 7.7 °dH, 13.7 °fH or 137 mg/L calcium carbonate.
What dishwasher salt setting should I use in Moissac?
For 137 mg/L (7.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Moissac?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 82112 (2026-08). Method: own measurement. Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 82112 · Outdated figure? Tell us