Water hardness in Grebenhain
6.1 °dH moderately hard
Tap water in Grebenhain is moderately hard: 6.1 °dH (108 mg/L · 6.3 gpg · 10.8 °fH).
Source: Gemeinde Grebenhain, Wasserhärte je Ortsteil (Härtegrad), Stand 31.12.2023 (2023) · data checked 2026-11-06
Range across supply zones: 58–155 mg/L.
8 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Bannerod | 6.1 | 109 | moderately hard |
| Bermuthshain | 3.2 | 58 | soft |
| Grebenhain, Oberwald, Vaitshain, Crainfeld | 4.3 | 76 | moderately hard |
| Heisters, Zahmen, Wünschen-Moos, Nösberts-Weidmoos | 6 | 107 | moderately hard |
| Herchenhain, Hartmannshain, Volkartshain | 6.9 | 123 | hard |
| Ilbeshausen-Hochwaldhausen, Hochbehälter neu | 3.5 | 62 | moderately hard |
| Metzlos | 6.2 | 111 | moderately hard |
| Metzlos-Gehaag | 8.7 | 155 | hard |
Grebenhain publishes water hardness for each Ortsteil, eight zones in total, as of 31 December 2023. The value for the municipality is 108.0 mg/L CaCO₃, and the zones range from 58.0 to 155.3 mg/L. Which hardness reaches a given home depends on the Ortsteil, and the municipality's list gives each one.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 6.1 °dH |
|---|---|
| Utility | Gemeinde Grebenhain (Wasserversorgung, Gemeindebauhof; supplier not named) |
How Grebenhain compares
- Tap water in Grebenhain is 47 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 698 of 809 in Germany (1 = hardest); 14 % of these cities have softer water.
- In Hessen it is number 63 of 73 cities; the regional median is 10.7 °dH.
- Nearest city with clearly softer water: Schotten, 20 km away (4.7 °dH).
- Nearest city with clearly harder water: Laubach, 27 km away (8.5 °dH).
Ranking of the hardest and softest water in Germany →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Grebenhain
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 6 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
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 Grebenhain water hard or soft?
It is moderately hard: 108 mg/L as CaCO₃ (6.3 gpg, 6.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Grebenhain 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 Grebenhain water?
6.3 gpg, equal to 6.1 °dH, 10.8 °fH or 108 mg/L calcium carbonate.
What dishwasher salt setting should I use in Grebenhain?
For 108 mg/L (6.1 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Grebenhain?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Gemeinde Grebenhain, Wasserhärte je Ortsteil (Härtegrad), Stand 31.12.2023 (2023). Method: figure published by the water supplier. Gemeinde Grebenhain, Wasserhärte je Ortsteil (Härtegrad), Stand 31.12.2023 · Outdated figure? Tell us