Water hardness in Chiva
32 °fH very hard
Tap water in Chiva is very hard: 32 °fH (320 mg/L · 18.7 gpg · 17.9 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 46111 (2026-09) · data checked 2026-10-19
Range across supply zones: 280–474 mg/L.
For Chiva, SINAC (the Ministry of Health's water-supply system) records 320 mg/L CaCO₃, with readings from 280 to 474 mg/L as of September 2026. Supply in this part of Valencia mixes river water from the Turia and Júcar with wells in carbonate aquifers, and that geology is why hardness is high across much of the province. This hardness forms limescale quickly in kettles, water heaters and washing machines; in a home, a softener is usually worth considering.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 32 °fH |
|---|
How Chiva compares
- Tap water in Chiva is 59 % harder than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 1236 of 4988 in Spain (1 = hardest); 75 % of these cities have softer water.
- In Valencia/València it is number 167 of 250 cities; the regional median is 36 °fH.
- Nearest city with clearly softer water: Chera, 20 km away (24 °fH).
- Nearest city with clearly harder water: Cheste, 5 km away (42.5 °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 Chiva
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| LG | H3 |
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 Chiva water hard or soft?
It is very hard: 320 mg/L as CaCO₃ (18.7 gpg, 17.9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Chiva 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 Chiva water?
18.7 gpg, equal to 17.9 °dH, 32 °fH or 320 mg/L calcium carbonate.
What dishwasher salt setting should I use in Chiva?
For 320 mg/L (17.9 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Chiva?
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 46111 (2026-09). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 46111 · Outdated figure? Tell us