Water hardness in Höchstadt an der Aisch
15 °dH very hard
Tap water in Höchstadt an der Aisch is very hard: 15 °dH (268 mg/L · 15.7 gpg · 26.8 °fH).
Source: Institut für Umweltanalytik (IfU) Prüfbericht Trinkwasser Ortsnetz Höchstadt, Probenahme 14.09.2022 (veröffentlicht auf wachenroth.de) (2022) · data checked 2026-11-02
This figure is over 3 years old; hardness may have changed.
The Höchstadt network was tested by Institut für Umweltanalytik on 14 September 2022, measuring 268.2 mg/L CaCO₃, with calcium at 61.0 mg/L and magnesium at 28.2 mg/L. Forchheim, 18 km away, reports 368.2 mg/L and Erlangen 211.7 mg/L. The report is from 2022 and covers a single network, so treat the figure as indicative.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 15 °dH |
|---|---|
| Calcium (mg/L) | 61 |
| Magnesium (mg/L) | 28.2 |
| hardness_mmol_l | 2.68 |
| Utility | Stadt Höchstadt a.d.Aisch |
How Höchstadt an der Aisch compares
- Tap water in Höchstadt an der Aisch is 31 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 256 of 809 in Germany (1 = hardest); 68 % of these cities have softer water.
- In Bayern it is number 76 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Adelsdorf, 9 km away (10.6 °dH).
- Nearest city with clearly harder water: Schlüsselfeld, 15 km away (25.6 °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 Höchstadt an der Aisch
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| Beko | 4th |
| Hoover | S2 |
| 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 Höchstadt an der Aisch water hard or soft?
It is very hard: 268 mg/L as CaCO₃ (15.7 gpg, 15 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Höchstadt an der Aisch 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 Höchstadt an der Aisch water?
15.7 gpg, equal to 15 °dH, 26.8 °fH or 268 mg/L calcium carbonate.
What dishwasher salt setting should I use in Höchstadt an der Aisch?
For 268 mg/L (15 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Höchstadt an der Aisch?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Institut für Umweltanalytik (IfU) Prüfbericht Trinkwasser Ortsnetz Höchstadt, Probenahme 14.09.2022 (veröffentlicht auf wachenroth.de) (2022). Method: own measurement. Institut für Umweltanalytik (IfU) Prüfbericht Trinkwasser Ortsnetz Höchstadt, Probenahme 14.09.2022 (veröffentlicht auf wachenroth.de) · Outdated figure? Tell us