Water hardness in Niederaula
8.1 °dH hard
Tap water in Niederaula is hard: 8.1 °dH (145 mg/L · 8.5 gpg · 14.5 °fH).
Source: Gemeinde Niederaula, Trinkwasseruntersuchung Ortsnetz Niederaula (Institut Umwelthygiene Marburg, Untersuchung 24.02.2026) (2026-02) · data checked 2026-11-06
The Gemeinde Niederaula publishes an analysis of the Niederaula local network dated 24 February 2026 (Institut Umwelthygiene Marburg). It gives 144.9 mg/L CaCO₃, category hard. The figure refers to that local network; other districts of the municipality may differ.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 8.1 °dH |
|---|---|
| Utility | Gemeinde Niederaula (Gemeindevorstand), Wasserversorgung Ortsnetze |
How Niederaula compares
- Tap water in Niederaula is 29 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 567 of 809 in Germany (1 = hardest); 30 % of these cities have softer water.
- In Hessen it is number 52 of 73 cities; the regional median is 10.7 °dH.
- Nearest city with clearly softer water: Grebenhain, 39 km away (6.1 °dH).
- Nearest city with clearly harder water: Gudensberg, 37 km away (12.5 °dH).
Ranking of the hardest and softest water in Germany →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Niederaula
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Niederaula water hard or soft?
It is hard: 145 mg/L as CaCO₃ (8.5 gpg, 8.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Niederaula 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 Niederaula water?
8.5 gpg, equal to 8.1 °dH, 14.5 °fH or 145 mg/L calcium carbonate.
What dishwasher salt setting should I use in Niederaula?
For 145 mg/L (8.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Niederaula?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Gemeinde Niederaula, Trinkwasseruntersuchung Ortsnetz Niederaula (Institut Umwelthygiene Marburg, Untersuchung 24.02.2026) (2026-02). Method: figure published by the water supplier. Gemeinde Niederaula, Trinkwasseruntersuchung Ortsnetz Niederaula (Institut Umwelthygiene Marburg, Untersuchung 24.02.2026) · Outdated figure? Tell us