Water hardness in Kirchheim unter Teck
13.4 °dH very hard
Tap water in Kirchheim unter Teck is very hard: 13.4 °dH (239 mg/L · 14 gpg · 23.9 °fH).
Source: Stadtwerke Kirchheim – Härtegrad (2026) · data checked 2026-10-23
Range across supply zones: 161–336 mg/L.
3 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Bissinger Eigenwasser (Nabern nördlich Neue Straße) | 18.8 | 336 | very hard |
| Bodenseewasser (restliches Lindorf) | 9 | 161 | hard |
| Landeswasser (Stadtgebiet Kirchheim, Jesingen, Ötlingen u.a.) | 13.4 | 239 | very hard |
Stadtwerke Kirchheim unter Teck lists three supply types. Most of the town, including Jesingen and Ötlingen, gets Landeswasser at 239.2 mg/L CaCO₃, which is the city figure. Lindorf receives Bodenseewasser at 160.7 mg/L, while Nabern north of Neue Straße gets Bissinger Eigenwasser at 335.6 mg/L, so check which zone your street is in.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 13.4 °dH |
|---|---|
| mmol_l | 3.36 |
| Utility | Stadtwerke Kirchheim unter Teck |
How Kirchheim unter Teck compares
- Tap water in Kirchheim unter Teck is 17 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 322 of 809 in Germany (1 = hardest); 60 % of these cities have softer water.
- In Baden-Württemberg it is number 68 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Denkendorf, 18 km away (9.3 °dH).
- Nearest city with clearly harder water: Wendlingen am Neckar, 14 km away (17 °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 Kirchheim unter Teck
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 13 °dH |
| AEG / Electrolux | 3 |
| Beko | 4th |
| Hoover | S2 |
| LG | H2 |
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 Kirchheim unter Teck water hard or soft?
It is very hard: 239 mg/L as CaCO₃ (14 gpg, 13.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Kirchheim unter Teck 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 Kirchheim unter Teck water?
14 gpg, equal to 13.4 °dH, 23.9 °fH or 239 mg/L calcium carbonate.
What dishwasher salt setting should I use in Kirchheim unter Teck?
For 239 mg/L (13.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Kirchheim unter Teck?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Kirchheim – Härtegrad (2026). Method: figure published by the water supplier. Stadtwerke Kirchheim – Härtegrad · Outdated figure? Tell us