Water hardness in Königs Wusterhausen
18.2 °dH very hard
Tap water in Königs Wusterhausen is very hard: 18.2 °dH (325 mg/L · 19 gpg · 32.5 °fH).
Source: DNWAB, Wasseranalyse Versorgungsgebiet/Wasserwerk Königs Wusterhausen 2022/2023 (2023) · data checked 2026-10-23
Range across supply zones: 291–355 mg/L.
DNWAB reports a mean of 18.21 °dH for Königs Wusterhausen, within a range of 16.30 to 19.90 °dH, which is hard. The report covers 2022/2023 and is about three years old, so the figure is due for a re-check. Descaling kettles and coffee machines regularly is sensible at this level.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 18.2 °dH |
|---|---|
| Utility | DNWAB |
How Königs Wusterhausen compares
- Tap water in Königs Wusterhausen is 58 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 138 of 809 in Germany (1 = hardest); 83 % of these cities have softer water.
- In Brandenburg it is number 6 of 15 cities; the regional median is 16 °dH.
- Nearest city with clearly softer water: Storkow (Mark), 29 km away (11.8 °dH).
- Nearest city with clearly harder water: Stahnsdorf, 30 km away (23.3 °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 Königs Wusterhausen
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| LG | H3 |
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 Königs Wusterhausen water hard or soft?
It is very hard: 325 mg/L as CaCO₃ (19 gpg, 18.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Königs Wusterhausen 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 Königs Wusterhausen water?
19 gpg, equal to 18.2 °dH, 32.5 °fH or 325 mg/L calcium carbonate.
What dishwasher salt setting should I use in Königs Wusterhausen?
For 325 mg/L (18.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Königs Wusterhausen?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: DNWAB, Wasseranalyse Versorgungsgebiet/Wasserwerk Königs Wusterhausen 2022/2023 (2023). Method: figure published by the water supplier. DNWAB, Wasseranalyse Versorgungsgebiet/Wasserwerk Königs Wusterhausen 2022/2023 · Outdated figure? Tell us