Water hardness in Konz
13.6 °dH very hard
Tap water in Konz is very hard: 13.6 °dH (243 mg/L · 14.2 gpg · 24.3 °fH).
Source: Saar-Mosel Werke Konz AöR - Trinkwasseranalyse 2025 (VG-Werke Konz) (2025) · data checked 2026-11-03
Range across supply zones: 218–268 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Mannebach Hochbehälter | 15 | 268 | very hard |
| Wasserliesch Hochbehälter | 12.2 | 218 | very hard |
Saar-Mosel Werke Konz publishes two zones for the town. Wasserliesch reservoir water, which serves Konz-Zentral below the railway, reads 12.2 °dH. Mannebach reservoir water, which serves the part above the railway, reads 15.0 °dH. Both come from the 2025 table; the utility labels both as medium, but 15.0 °dH is above the 14 °dH line for hard water under the German detergent law, so check which reservoir feeds your street before sizing a softener.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 13.6 °dH |
|---|---|
| Utility | Saar-Mosel Werke Konz AöR (SMW), VG-Werke Konz |
How Konz compares
- Tap water in Konz is 18 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 311 of 809 in Germany (1 = hardest); 62 % of these cities have softer water.
- In Rheinland-Pfalz it is number 10 of 25 cities; the regional median is 9.9 °dH.
- Nearest city with clearly softer water: Schweich, 23 km away (9.8 °dH).
- Nearest city with clearly harder water: Bitburg, 32 km away (22.5 °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 Konz
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 14 °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 Konz water hard or soft?
It is very hard: 243 mg/L as CaCO₃ (14.2 gpg, 13.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Konz 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 Konz water?
14.2 gpg, equal to 13.6 °dH, 24.3 °fH or 243 mg/L calcium carbonate.
What dishwasher salt setting should I use in Konz?
For 243 mg/L (13.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Konz?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Saar-Mosel Werke Konz AöR - Trinkwasseranalyse 2025 (VG-Werke Konz) (2025). Method: figure published by the water supplier. Saar-Mosel Werke Konz AöR - Trinkwasseranalyse 2025 (VG-Werke Konz) · Outdated figure? Tell us