Water hardness in Oedheim
16.6 °dH very hard
Tap water in Oedheim is very hard: 16.6 °dH (296 mg/L · 17.3 gpg · 29.6 °fH).
Source: Gemeinde Oedheim, Chemische Trinkwasseranalyse Stand November 2025 (Labor Pachali) (2025-11) · data checked 2026-11-06
Range across supply zones: 259–296 mg/L.
3 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Oedheim Hochzone | 16.6 | 296 | very hard |
| Oedheim Neudorf und Säukiesweg | 14.5 | 259 | very hard |
| Oedheim Niederzone (bis Kocherbrücke) | 16.6 | 296 | very hard |
In Oedheim (Baden-Württemberg), Regionalwerke Neckar-Kocher handle the technical operation of the water supply for the municipality. The November 2025 analysis (Labor Pachali) covers three zones: a median of 296.3 mg/L CaCO₃ and a range of 258.8 to 296.3 mg/L (very hard category). The value at your address depends on the zone.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 16.6 °dH |
|---|---|
| Utility | Regionalwerke Neckar-Kocher GmbH & Co. KG (technische Betriebsführung for Gemeinde Oedheim) |
How Oedheim compares
- Tap water in Oedheim is 44 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 199 of 809 in Germany (1 = hardest); 75 % of these cities have softer water.
- In Baden-Württemberg it is number 40 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Heilbronn, 11 km away (11.4 °dH).
- Nearest city with clearly harder water: Beilstein, 23 km away (23 °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 Oedheim
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 17 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| LG | H3 |
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 Oedheim water hard or soft?
It is very hard: 296 mg/L as CaCO₃ (17.3 gpg, 16.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Oedheim 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 Oedheim water?
17.3 gpg, equal to 16.6 °dH, 29.6 °fH or 296 mg/L calcium carbonate.
What dishwasher salt setting should I use in Oedheim?
For 296 mg/L (16.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Oedheim?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Gemeinde Oedheim, Chemische Trinkwasseranalyse Stand November 2025 (Labor Pachali) (2025-11). Method: figure published by the water supplier. Gemeinde Oedheim, Chemische Trinkwasseranalyse Stand November 2025 (Labor Pachali) · Outdated figure? Tell us