Water hardness in Schlüsselfeld
25.6 °dH very hard
Tap water in Schlüsselfeld is very hard: 25.6 °dH (457 mg/L · 26.7 gpg · 45.7 °fH).
Source: Stadt Schlüsselfeld, Umfassende Trinkwasseruntersuchung für die Ortsteile 2025 (Probenahme 17.09.2025) (2025-09) · data checked 2026-11-06
The town of Schlüsselfeld (Bavaria, Bamberg district) runs its own water supply. The comprehensive test for the districts, sampled on 17 September 2025, reports 457.0 mg/L CaCO₃ (very hard category). It is a single sample published for several districts (Ortsteile), so differences between them cannot be ruled out.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 25.6 °dH |
|---|---|
| Utility | Stadt Schlüsselfeld (municipal water supply) |
How Schlüsselfeld compares
- Tap water in Schlüsselfeld is 123 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 11 of 809 in Germany (1 = hardest); 99 % of these cities have softer water.
- Nearest city with clearly softer water: Burgebrach, 12 km away (16.5 °dH).
- Nearest city with clearly harder water: Gerbrunn, 45 km away (38.6 °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 Schlüsselfeld
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 26 °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 Schlüsselfeld water hard or soft?
It is very hard: 457 mg/L as CaCO₃ (26.7 gpg, 25.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Schlüsselfeld 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 Schlüsselfeld water?
26.7 gpg, equal to 25.6 °dH, 45.7 °fH or 457 mg/L calcium carbonate.
What dishwasher salt setting should I use in Schlüsselfeld?
For 457 mg/L (25.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Schlüsselfeld?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadt Schlüsselfeld, Umfassende Trinkwasseruntersuchung für die Ortsteile 2025 (Probenahme 17.09.2025) (2025-09). Method: figure published by the water supplier. Stadt Schlüsselfeld, Umfassende Trinkwasseruntersuchung für die Ortsteile 2025 (Probenahme 17.09.2025) · Outdated figure? Tell us