Water hardness in San Miguel de Abona
23.4 °fH very hard
Tap water in San Miguel de Abona is very hard: 23.4 °fH (234 mg/L · 13.7 gpg · 13.1 °dH).
Source: SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 38035 (2026-07) · data checked 2026-10-19
Range across supply zones: 87–267 mg/L.
The hardness recorded in SINAC for San Miguel de Abona is 234 mg/L CaCO₃, with readings from 87 to 267 mg/L, based on July 2026 data, so it varies a lot with the supply point and the blend at the time. In the western Canary Islands water comes mostly from galleries and wells in volcanic rock, with desalination in some areas; hardness changes with the blend. Scale builds up regularly in kettles, taps and the washing-machine heating element, so they need frequent cleaning.
Fuentes españolas usan °fH (grados hidrotimétricos franceses) o mg/L CaCO₃.
Water data
| Total hardness | 23.4 °fH |
|---|
How San Miguel de Abona compares
- Tap water in San Miguel de Abona is 16 % harder than the median of the 4988 cities we track in Spain (20.1 °fH).
- By hardness it ranks 2157 of 4988 in Spain (1 = hardest); 57 % of these cities have softer water.
- In Santa Cruz de Tenerife it is number 5 of 48 cities; the regional median is 10 °fH.
- Nearest city with clearly softer water: Vilaflor, 7 km away (7.8 °fH).
- Nearest city with clearly harder water: Victoria de Acentejo, La, 40 km away (33.1 °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 San Miguel de Abona
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 13 °dH |
| AEG / Electrolux | 3 |
| Beko | 4th |
| Hoover | S2 |
| 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 San Miguel de Abona water hard or soft?
It is very hard: 234 mg/L as CaCO₃ (13.7 gpg, 13.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in San Miguel de Abona 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 San Miguel de Abona water?
13.7 gpg, equal to 13.1 °dH, 23.4 °fH or 234 mg/L calcium carbonate.
What dishwasher salt setting should I use in San Miguel de Abona?
For 234 mg/L (13.1 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in San Miguel de Abona?
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 38035 (2026-07). Method: own measurement. SINAC, Ministerio de Sanidad — Información de un abastecimiento, municipio 38035 · Outdated figure? Tell us