Water hardness in Diksmuide
22.3 °fH very hard
Tap water in Diksmuide is very hard: 22.3 °fH (223 mg/L · 13 gpg · 12.5 °dH).
Source: VMM, Kwaliteit van het drinkwater per leveringsgebied 2024, bijlage 2 (mediane concentratie) (2024) · data checked 2026-10-19
Range across supply zones: 176–253 mg/L.
Aquaduin and De Watergroep supply this part of Flanders with a mix of groundwater and canal-fed surface water, so hardness sits between the soft sandy Campine and the hard chalk areas. De Watergroep produces water here at the De Blankaart plant, which treats surface water. The 2024 figure is 223.3 mg/L CaCO₃, within a reported range of 176.0 to 253.0 mg/L, which reflects the different supply areas that serve the town. At this level limescale builds up quickly in kettles, boilers and washing machines, so descaling and a softener are worth considering.
Belgian suppliers report hardness in °f (French degrees); 1 °f = 10 mg/L CaCO₃.
Water data
| Total hardness | 22.3 °fH |
|---|---|
| Utility | Aquaduin, De Watergroep |
How Diksmuide compares
- Tap water in Diksmuide is 29 % softer than the median of the 1091 cities we track in Belgium (31.6 °fH).
- By hardness it ranks 732 of 1091 in Belgium (1 = hardest); 33 % of these cities have softer water.
- In West-Vlaanderen it is number 44 of 58 cities; the regional median is 24.5 °fH.
- Nearest city with clearly softer water: Alveringem, 11 km away (17.6 °fH).
- Nearest city with clearly harder water: Staden, 12 km away (29.4 °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 Diksmuide
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 13 °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 Diksmuide water hard or soft?
It is very hard: 223 mg/L as CaCO₃ (13 gpg, 12.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Diksmuide 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 Diksmuide water?
13 gpg, equal to 12.5 °dH, 22.3 °fH or 223 mg/L calcium carbonate.
What dishwasher salt setting should I use in Diksmuide?
For 223 mg/L (12.5 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Diksmuide?
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