Water hardness in Limburg an der Lahn
23.3 °dH very hard
Tap water in Limburg an der Lahn is very hard: 23.3 °dH (416 mg/L · 24.3 gpg · 41.6 °fH).
Source: EVL Energieversorgung Limburg, Trinkwasseranalyse (Prüfbericht, sample 14.05.2025) (2025-05) · data checked 2026-10-23
EVL Energieversorgung Limburg published a lab report from a May 2025 sample: 23.3 °dH (4.16 mmol/l), which is hard. It covers one sampling point, the upper pressure zone at the Jugendherberge Am Hammerberg, and other zones were not checked. Expect heavy scale on kettles and boilers, but confirm the value for your street with the utility.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 23.3 °dH |
|---|---|
| Utility | EVL Energieversorgung Limburg |
How Limburg an der Lahn compares
- Tap water in Limburg an der Lahn is 103 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 23 of 809 in Germany (1 = hardest); 97 % of these cities have softer water.
- In Hessen it is number 1 of 73 cities; the regional median is 10.7 °dH.
- Nearest city with clearly softer water: Runkel, 2 km away (18.4 °dH).
- Nearest city with clearly harder water: Nußloch, 128 km away (31.6 °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 Limburg an der Lahn
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 23 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S3 |
| LG | H4 |
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 Limburg an der Lahn water hard or soft?
It is very hard: 416 mg/L as CaCO₃ (24.3 gpg, 23.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Limburg an der Lahn 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 Limburg an der Lahn water?
24.3 gpg, equal to 23.3 °dH, 41.6 °fH or 416 mg/L calcium carbonate.
What dishwasher salt setting should I use in Limburg an der Lahn?
For 416 mg/L (23.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Limburg an der Lahn?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: EVL Energieversorgung Limburg, Trinkwasseranalyse (Prüfbericht, sample 14.05.2025) (2025-05). Method: figure published by the water supplier. EVL Energieversorgung Limburg, Trinkwasseranalyse (Prüfbericht, sample 14.05.2025) · Outdated figure? Tell us