Water hardness in Mihail Kogălniceanu
19.1 °dH very hard
Tap water in Mihail Kogălniceanu is very hard: 19.1 °dH (342 mg/L · 20 gpg · 34.2 °fH).
Source: RAJA S.A. Constanța, Indicatori fizico-chimici ai apei potabile (OG 7/2023), valori medii 2026 (2026) · data checked 2026-10-29
Range across supply zones: 312–371 mg/L.
RAJA S.A. Constanța reports 2026 average values for two supply zones in Mihail Kogălniceanu: 20.8 °dH in zone I and 17.5 °dH in zone II, with 19.15 °dH shown as the midpoint. Which zone you are in therefore matters a little. The table does not name the water source. Plan for regular descaling of kettles and heaters.
Romanian operators report "duritate totală" in German degrees (grade germane); the minimum is 5 °dH.
Water data
| Total hardness | 19.1 °dH |
|---|---|
| Utility | RAJA S.A. Constanța |
How Mihail Kogălniceanu compares
- Tap water in Mihail Kogălniceanu is 17 % harder than the median of the 115 cities we track in Romania (16.3 °dH).
- By hardness it ranks 24 of 115 in Romania (1 = hardest); 80 % of these cities have softer water.
- Nearest city with clearly softer water: Nisipari, 13 km away (12.5 °dH).
- Nearest city with clearly harder water: Tortoman, 19 km away (44.7 °dH).
Ranking of the hardest and softest water in Romania →
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 Mihail Kogălniceanu
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 19 °dH |
| AEG / Electrolux | 5 |
| Beko | 5th |
| Hoover | S3 |
| 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 Mihail Kogălniceanu water hard or soft?
It is very hard: 342 mg/L as CaCO₃ (20 gpg, 19.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Mihail Kogălniceanu safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Romanian operators report "duritate totală" in German degrees (grade germane); the minimum is 5 °dH.
How many grains per gallon is Mihail Kogălniceanu water?
20 gpg, equal to 19.1 °dH, 34.2 °fH or 342 mg/L calcium carbonate.
What dishwasher salt setting should I use in Mihail Kogălniceanu?
For 342 mg/L (19.1 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Mihail Kogălniceanu?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: RAJA S.A. Constanța, Indicatori fizico-chimici ai apei potabile (OG 7/2023), valori medii 2026 (2026). Method: figure published by the water supplier. RAJA S.A. Constanța, Indicatori fizico-chimici ai apei potabile (OG 7/2023), valori medii 2026 · Outdated figure? Tell us