Water hardness in Wassenberg
12.8 °dH very hard
Tap water in Wassenberg is very hard: 12.8 °dH (229 mg/L · 13.4 gpg · 22.9 °fH).
Source: Kreiswasserwerk Heinsberg, Härtewerte nach Versorgungsbereich (2026-10) · data checked 2026-10-29
Kreiswasserwerk Heinsberg lists 229.2 mg/L CaCO₃ for Wassenberg, which makes it very hard. Heinsberg, 5 km away, reports 149.9 mg/L, and Erkelenz 251.2 mg/L, so the supply areas of the same utility differ noticeably. The utility's page is organised by supply area, so use it to confirm the value for your street.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 12.8 °dH |
|---|---|
| Utility | Kreiswasserwerk Heinsberg |
How Wassenberg compares
- Tap water in Wassenberg is 12 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 345 of 809 in Germany (1 = hardest); 57 % of these cities have softer water.
- In Nordrhein-Westfalen it is number 57 of 153 cities; the regional median is 11.3 °dH.
- Nearest city with clearly softer water: Heinsberg, 5 km away (8.4 °dH).
- Nearest city with clearly harder water: Pulheim, 47 km away (18.1 °dH).
Ranking of the hardest and softest water in Germany →
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 Wassenberg
| 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 Wassenberg water hard or soft?
It is very hard: 229 mg/L as CaCO₃ (13.4 gpg, 12.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Wassenberg safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
How many grains per gallon is Wassenberg water?
13.4 gpg, equal to 12.8 °dH, 22.9 °fH or 229 mg/L calcium carbonate.
What dishwasher salt setting should I use in Wassenberg?
For 229 mg/L (12.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Wassenberg?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Kreiswasserwerk Heinsberg, Härtewerte nach Versorgungsbereich (2026-10). Method: figure published by the water supplier. Kreiswasserwerk Heinsberg, Härtewerte nach Versorgungsbereich · Outdated figure? Tell us