Water hardness in Monzón
17.4 °fH hard
Tap water in Monzón is hard: 17.4 °fH (174 mg/L · 10.2 gpg · 9.7 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 22158 (2026-08) · data checked 2026-10-19
Range across supply zones: 130–190 mg/L.
The hardness recorded in SINAC for Monzón is 174 mg/L CaCO₃, with readings from 130 to 190 mg/L, based on August 2026 data. In this part of Aragón the water comes from the Ebro, its tributaries and local sources, and crosses ground with gypsum and limestone that raises mineral content. Some scale shows on shower screens, kettles and taps, and a scale-reduction filter can be reasonable if you want to protect appliances.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 17.4 °fH |
|---|
How Monzón compares
- Tap water in Monzón is 13 % softer than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 2760 of 4988 in Spain (1 = hardest); 45 % of these cities have softer water.
- In Huesca it is number 72 of 163 cities; the regional median is 16.3 °fH.
- Nearest city with clearly softer water: San Miguel de Cinca, 10 km away (12 °fH).
- Nearest city with clearly harder water: Azanuy-Alins, 15 km away (37 °fH).
Ranking of the hardest and softest water in Spain →
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 Monzón
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| 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 Monzón water hard or soft?
It is hard: 174 mg/L as CaCO₃ (10.2 gpg, 9.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Monzón 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 Monzón water?
10.2 gpg, equal to 9.7 °dH, 17.4 °fH or 174 mg/L calcium carbonate.
What dishwasher salt setting should I use in Monzón?
For 174 mg/L (9.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Monzón?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 22158 (2026-08). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 22158 · Outdated figure? Tell us