Water hardness in Stockelsdorf
18.6 °dH very hard
Tap water in Stockelsdorf is very hard: 18.6 °dH (332 mg/L · 19.4 gpg · 33.2 °fH).
Source: Gemeindewerke Stockelsdorf, Wasserbeschaffenheit (Analysen 28.05.2026 und 30.07.2026) (2026-07) · data checked 2026-11-03
Gemeindewerke Stockelsdorf publishes its own analyses, and the latest one, from 30 July 2026, gives 331.9 mg/L CaCO₃, which the utility classes as hard under the German WRMG. An earlier annual analysis from 28 May 2026 was slightly lower, so expect small shifts between samples. The utility page does not say which aquifer feeds the supply, so we do not name one. Expect limescale on kettles and taps, and check the page for the current figure.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 18.6 °dH |
|---|---|
| Utility | Gemeindewerke Stockelsdorf GmbH |
How Stockelsdorf compares
- Tap water in Stockelsdorf is 62 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 121 of 809 in Germany (1 = hardest); 85 % of these cities have softer water.
- In Schleswig-Holstein it is number 1 of 26 cities; the regional median is 12 °dH.
- Nearest city with clearly softer water: Wahlstedt, 30 km away (10.6 °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 Stockelsdorf
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 19 °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 Stockelsdorf water hard or soft?
It is very hard: 332 mg/L as CaCO₃ (19.4 gpg, 18.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Stockelsdorf 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 Stockelsdorf water?
19.4 gpg, equal to 18.6 °dH, 33.2 °fH or 332 mg/L calcium carbonate.
What dishwasher salt setting should I use in Stockelsdorf?
For 332 mg/L (18.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Stockelsdorf?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Gemeindewerke Stockelsdorf, Wasserbeschaffenheit (Analysen 28.05.2026 und 30.07.2026) (2026-07). Method: figure published by the water supplier. Gemeindewerke Stockelsdorf, Wasserbeschaffenheit (Analysen 28.05.2026 und 30.07.2026) · Outdated figure? Tell us