Water hardness in Azuqueca de Henares
15.5 °fH hard
Tap water in Azuqueca de Henares is hard: 15.5 °fH (155 mg/L · 9 gpg · 8.7 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 19046 (2026-10) · data checked 2026-10-19
Range across supply zones: 46–264 mg/L.
The water comes from Tagus basin reservoirs and intakes, with mountain streams and wells. Official analyses put the water at 154.8 mg/L CaCO₃, hard, with values between 45.7 and 264 mg/L depending on network, source and season. Contact with limestone terrain adds calcium and bicarbonate. Scale builds up quickly in kettles, taps and washing-machine heating elements.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 15.5 °fH |
|---|
How Azuqueca de Henares compares
- Tap water in Azuqueca de Henares is 23 % softer than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 2964 of 4988 in Spain (1 = hardest); 41 % of these cities have softer water.
- In Guadalajara it is number 21 of 35 cities; the regional median is 25.6 °fH.
- Nearest city with clearly softer water: Alovera, 4 km away (4.7 °fH).
- Nearest city with clearly harder water: Chiloeches, 5 km away (31.5 °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 Azuqueca de Henares
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °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 Azuqueca de Henares water hard or soft?
It is hard: 155 mg/L as CaCO₃ (9 gpg, 8.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Azuqueca de Henares 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 Azuqueca de Henares water?
9 gpg, equal to 8.7 °dH, 15.5 °fH or 155 mg/L calcium carbonate.
What dishwasher salt setting should I use in Azuqueca de Henares?
For 155 mg/L (8.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Azuqueca de Henares?
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 19046 (2026-10). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 19046 · Outdated figure? Tell us