Water Hardness Atlas ZIP / postcode

Water hardness in Ciudad Real

16.4 °fH hard

Tap water in Ciudad Real is hard: 16.4 °fH (164 mg/L · 9.6 gpg · 9.2 °dH).

<6060–120120–180>180 mg/L

Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 13034 (2026-10) · data checked 2026-10-19

Range across supply zones: 157–167 mg/L.

The water comes from reservoirs and from La Mancha aquifer wells, largely in limestone terrain. Official analyses put the water at 164 mg/L CaCO₃, hard, with values between 157 and 167 mg/L. Contact with limestone terrain adds calcium and bicarbonate. Descale kettles regularly and check heating elements.

Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.

Water data

Total hardness16.4 °fH

How Ciudad Real compares

Ranking of the hardest and softest water in Spain →

What it means at home

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 Ciudad Real

BrandSetting for this water
BoschH02
Miele9 °dH
AEG / Electrolux2
Beko3rd
HooverS1
LGH2

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 Ciudad Real water hard or soft?

It is hard: 164 mg/L as CaCO₃ (9.6 gpg, 9.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Ciudad Real 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 Ciudad Real water?

9.6 gpg, equal to 9.2 °dH, 16.4 °fH or 164 mg/L calcium carbonate.

What dishwasher salt setting should I use in Ciudad Real?

For 164 mg/L (9.2 °dH) check your manufacturer's table: level 4–5.

Do I need a water softener in Ciudad Real?

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 13034 (2026-10). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 13034 · Outdated figure? Tell us

Nearby cities

Poblete16.3 °fHAlcolea de Calatrava15.4 °fHVillar del Pozo5.8 °fHCañada de Calatrava14.8 °fHBallesteros de Calatrava26.5 °fHMiguelturra33 °fH
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