Water hardness in Caspe
47.2 °fH very hard
Tap water in Caspe is very hard: 47.2 °fH (472 mg/L · 27.6 gpg · 26.4 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 50074 (2026-05) · data checked 2026-10-19
SINAC, the Ministry of Health's drinking-water register, reports 472 mg/L CaCO₃ for Caspe, very hard. Towns around the lower Ebro and Bajo Aragón run from 215 to 655 mg/L, so the range is wide. Scale forms quickly in kettles, heaters and washing machines, and a softener is worth considering.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 47.2 °fH |
|---|
How Caspe compares
- Tap water in Caspe is 135 % harder than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 329 of 4988 in Spain (1 = hardest); 93 % of these cities have softer water.
- In Zaragoza it is number 30 of 269 cities; the regional median is 27 °fH.
- Nearest city with clearly softer water: Chiprana, 11 km away (31.3 °fH).
- Nearest city with clearly harder water: Fabara, 18 km away (65.5 °fH).
Ranking of the hardest and softest water in Spain →
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 Caspe
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 26 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S4 |
| LG | H4 |
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 Caspe water hard or soft?
It is very hard: 472 mg/L as CaCO₃ (27.6 gpg, 26.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Caspe safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
How many grains per gallon is Caspe water?
27.6 gpg, equal to 26.4 °dH, 47.2 °fH or 472 mg/L calcium carbonate.
What dishwasher salt setting should I use in Caspe?
For 472 mg/L (26.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Caspe?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 50074 (2026-05). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 50074 · Outdated figure? Tell us