Water hardness in De Haan
20.7 °fH very hard
Tap water in De Haan is very hard: 20.7 °fH (207 mg/L · 12.1 gpg · 11.6 °dH).
Source: VMM, Kwaliteit van het drinkwater per leveringsgebied 2024, bijlage 2 (mediane concentratie) (2024) · data checked 2026-10-19
De Haan on the West-Vlaanderen coast is supplied by Farys. The VMM 2024 median is 207.0 mg/L CaCO₃, which is very hard. No range is published for this area in our data. Holiday homes left empty should be flushed, and scale is common on taps.
Belgian suppliers report hardness in °f (French degrees); 1 °f = 10 mg/L CaCO₃.
Water data
| Total hardness | 20.7 °fH |
|---|---|
| Utility | Farys |
How De Haan compares
- Tap water in De Haan is 34 % softer than the median of the 1091 cities we track in Belgium (31.6 °fH).
- By hardness it ranks 764 of 1091 in Belgium (1 = hardest); 30 % of these cities have softer water.
- In West-Vlaanderen it is number 47 of 58 cities; the regional median is 24.5 °fH.
- Nearest city with clearly softer water: Sint-Laureins, 34 km away (16.5 °fH).
- Nearest city with clearly harder water: Brugge, 15 km away (30.3 °fH).
Ranking of the hardest and softest water in Belgium →
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 De Haan
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 12 °dH |
| AEG / Electrolux | 3 |
| Beko | 3rd |
| 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 De Haan water hard or soft?
It is very hard: 207 mg/L as CaCO₃ (12.1 gpg, 11.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in De Haan safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Belgian suppliers report hardness in °f (French degrees); 1 °f = 10 mg/L CaCO₃.
How many grains per gallon is De Haan water?
12.1 gpg, equal to 11.6 °dH, 20.7 °fH or 207 mg/L calcium carbonate.
What dishwasher salt setting should I use in De Haan?
For 207 mg/L (11.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in De Haan?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: VMM, Kwaliteit van het drinkwater per leveringsgebied 2024, bijlage 2 (mediane concentratie) (2024). Method: figure published by the water supplier. VMM, Kwaliteit van het drinkwater per leveringsgebied 2024, bijlage 2 (mediane concentratie) · Outdated figure? Tell us