Water hardness in Leopoldshöhe
25.2 °dH very hard
Tap water in Leopoldshöhe is very hard: 25.2 °dH (450 mg/L · 26.3 gpg · 45 °fH).
Source: Gemeinde Leopoldshöhe, Trinkwasseranalyse 2025 (Prüfbericht CW-2025-03349, Wasserwerk) (2025-04) · data checked 2026-11-03
The municipality of Leopoldshöhe publishes lab report CW-2025-03349, based on one waterworks sample taken on 29 April 2025. It gives 449.8 mg/L CaCO₃, among the hardest values in our German data, and the calcium and magnesium figures in the report agree with that total. This is a single sample from the works, not a median across the network, so tap water at your address may differ slightly. Limescale builds up quickly in kettles, boilers and washing machines.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 25.2 °dH |
|---|---|
| Calcium (mg/L) | 143 |
| Magnesium (mg/L) | 22.4 |
How Leopoldshöhe compares
- Tap water in Leopoldshöhe is 119 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 14 of 809 in Germany (1 = hardest); 98 % of these cities have softer water.
- In Nordrhein-Westfalen it is number 1 of 153 cities; the regional median is 11.3 °dH.
- Nearest city with clearly softer water: Bad Salzuflen, 8 km away (16.3 °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 Leopoldshöhe
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 25 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S3 |
| LG | H4 |
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 Leopoldshöhe water hard or soft?
It is very hard: 450 mg/L as CaCO₃ (26.3 gpg, 25.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Leopoldshöhe 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 Leopoldshöhe water?
26.3 gpg, equal to 25.2 °dH, 45 °fH or 450 mg/L calcium carbonate.
What dishwasher salt setting should I use in Leopoldshöhe?
For 450 mg/L (25.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Leopoldshöhe?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Gemeinde Leopoldshöhe, Trinkwasseranalyse 2025 (Prüfbericht CW-2025-03349, Wasserwerk) (2025-04). Method: figure published by the water supplier. Gemeinde Leopoldshöhe, Trinkwasseranalyse 2025 (Prüfbericht CW-2025-03349, Wasserwerk) · Outdated figure? Tell us