Water hardness in Villamartín
60.3 °fH very hard
Tap water in Villamartín is very hard: 60.3 °fH (603 mg/L · 35.2 gpg · 33.8 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 11041 (2026-08) · data checked 2026-10-21
SINAC, the Ministry of Health's drinking-water register, reports 603 mg/L CaCO₃ for Villamartín, very hard. Towns around it in the Cádiz sierra are between 223 and 329 mg/L, so this is among the harder supplies in the area. Scale builds up very quickly in kettles and heaters, and many homes use a softener.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 60.3 °fH |
|---|
How Villamartín compares
- Tap water in Villamartín is 200 % harder than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 114 of 4988 in Spain (1 = hardest); 98 % of these cities have softer water.
- In Cádiz it is number 1 of 43 cities; the regional median is 21.4 °fH.
- Nearest city with clearly softer water: Prado del Rey, 7 km away (27.4 °fH).
- Nearest city with clearly harder water: Alameda, 93 km away (76.8 °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 Villamartín
| Brand | Setting for this water |
|---|---|
| Bosch | H07 |
| Miele | 34 °dH |
| AEG / Electrolux | 7 |
| Beko | 6th |
| Hoover | S5 |
| 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 Villamartín water hard or soft?
It is very hard: 603 mg/L as CaCO₃ (35.2 gpg, 33.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Villamartín 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 Villamartín water?
35.2 gpg, equal to 33.8 °dH, 60.3 °fH or 603 mg/L calcium carbonate.
What dishwasher salt setting should I use in Villamartín?
For 603 mg/L (33.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Villamartín?
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 11041 (2026-08). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 11041 · Outdated figure? Tell us