Water hardness in Olteni
14.8 °dH very hard
Tap water in Olteni is very hard: 14.8 °dH (264 mg/L · 15.4 gpg · 26.4 °fH).
Source: RAJA S.A. Constanța, Indicatori fizico-chimici ai apei potabile (OG 7/2023), valori medii 2026 (2026) · data checked 2026-10-29
Romanian operators report "duritate totală" in German degrees (grade germane); the minimum is 5 °dH.
Water data
| Total hardness | 14.8 °dH |
|---|---|
| Utility | RAJA S.A. Constanța |
How Olteni compares
- Tap water in Olteni is 9 % softer than the median of the 115 cities we track in Romania (16.3 °dH).
- By hardness it ranks 71 of 115 in Romania (1 = hardest); 38 % of these cities have softer water.
- Nearest city with clearly softer water: Corbeanca, 24 km away (3 °dH).
- Nearest city with clearly harder water: Lucieni, 65 km away (18.7 °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 Olteni
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| Beko | 4th |
| 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 Olteni water hard or soft?
It is very hard: 264 mg/L as CaCO₃ (15.4 gpg, 14.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Olteni 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 Olteni water?
15.4 gpg, equal to 14.8 °dH, 26.4 °fH or 264 mg/L calcium carbonate.
What dishwasher salt setting should I use in Olteni?
For 264 mg/L (14.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Olteni?
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