Water hardness in Fieni
6.8 °dH hard
Tap water in Fieni is hard: 6.8 °dH (122 mg/L · 7.1 gpg · 12.2 °fH).
Source: Compania de Apă Târgoviște-Dâmbovița, situația centralizată a parametrilor monitorizați, 2026-09 (2026-09) · data checked 2026-10-29
Range across supply zones: 108–124 mg/L.
Compania de Apă Târgoviște-Dâmbovița reports three September 2026 samplings for Fieni, between 6.05 and 6.95 °dH, with 6.84 °dH as the median. The sampling points differ, so the value depends somewhat on the street. This is among the softer results in the county's table, and limescale builds up slowly.
Romanian operators report "duritate totală" in German degrees (grade germane); the minimum is 5 °dH.
Water data
| Total hardness | 6.8 °dH |
|---|---|
| Utility | Compania de Apă Târgoviște-Dâmbovița S.A. |
How Fieni compares
- Tap water in Fieni is 58 % softer than the median of the 115 cities we track in Romania (16.3 °dH).
- By hardness it ranks 105 of 115 in Romania (1 = hardest); 9 % of these cities have softer water.
- In Dâmbovița it is number 19 of 21 cities; the regional median is 11 °dH.
- Nearest city with clearly softer water: Corbeanca, 78 km away (3 °dH).
- Nearest city with clearly harder water: Bezdead, 8 km away (17.2 °dH).
Ranking of the hardest and softest water in Romania →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Fieni
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| 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 Fieni water hard or soft?
It is hard: 122 mg/L as CaCO₃ (7.1 gpg, 6.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Fieni 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 Fieni water?
7.1 gpg, equal to 6.8 °dH, 12.2 °fH or 122 mg/L calcium carbonate.
What dishwasher salt setting should I use in Fieni?
For 122 mg/L (6.8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Fieni?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Compania de Apă Târgoviște-Dâmbovița, situația centralizată a parametrilor monitorizați, 2026-09 (2026-09). Method: own measurement. Compania de Apă Târgoviște-Dâmbovița, situația centralizată a parametrilor monitorizați, 2026-09 · Outdated figure? Tell us