Water hardness in Billerbeck
11 °dH very hard
Tap water in Billerbeck is very hard: 11 °dH (197 mg/L · 11.5 gpg · 19.7 °fH).
Source: Gelsenwasser AG, Wasserhärte nach Ort (2026) · data checked 2026-10-20
Range across supply zones: 193–202 mg/L.
Gelsenwasser reports 197.2 mg/L CaCO₃ for Billerbeck in its 2026 locality table, within a narrow range of 192.8 to 201.7 mg/L. The water is very hard throughout the town. Expect visible scale on taps and glass.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 11 °dH |
|---|
How Billerbeck compares
- Tap water in Billerbeck is close to the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 434 of 809 in Germany (1 = hardest); 46 % of these cities have softer water.
- In Nordrhein-Westfalen it is number 85 of 153 cities; the regional median is 11.3 °dH.
- Nearest city with clearly softer water: Velen, 23 km away (3.9 °dH).
- Nearest city with clearly harder water: Greven, 25 km away (20 °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 Billerbeck
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 11 °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 Billerbeck water hard or soft?
It is very hard: 197 mg/L as CaCO₃ (11.5 gpg, 11 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Billerbeck 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 Billerbeck water?
11.5 gpg, equal to 11 °dH, 19.7 °fH or 197 mg/L calcium carbonate.
What dishwasher salt setting should I use in Billerbeck?
For 197 mg/L (11 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Billerbeck?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Gelsenwasser AG, Wasserhärte nach Ort (2026). Method: figure published by the water supplier. Gelsenwasser AG, Wasserhärte nach Ort · Outdated figure? Tell us