Water hardness in Târgu Mureș
4.1 °dH moderately hard
Tap water in Târgu Mureș is moderately hard: 4.1 °dH (73 mg/L · 4.3 gpg · 7.3 °fH).
Source: Aquaserv: Calitatea apei potabile Tg-Mures, iulie 2026 (2026-07) · data checked 2026-10-23
Public supply in Romania combines surface water and groundwater, and hardness follows the local geology. The reported hardness is 73.2 mg/L CaCO₃. Kettles and shower screens collect some limescale over time, and regular descaling is usually enough.
Romanian operators report "duritate totală" in German degrees (grade germane); the minimum is 5 °dH.
Water data
| Total hardness | 4.1 °dH |
|---|---|
| Utility | Aquaserv S.A. |
How Târgu Mureș compares
- Tap water in Târgu Mureș is 75 % softer than the median of the 115 cities we track in Romania (16.3 °dH).
- By hardness it ranks 113 of 115 in Romania (1 = hardest); 2 % of these cities have softer water.
- Nearest city with clearly harder water: Sighișoara, 40 km away (6.2 °dH).
Ranking of the hardest and softest water in Romania →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Târgu Mureș
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 4 °dH |
| AEG / Electrolux | 2 |
| Beko | 1st |
| Hoover | S1 |
| LG | H1 |
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 Târgu Mureș water hard or soft?
It is moderately hard: 73 mg/L as CaCO₃ (4.3 gpg, 4.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Târgu Mureș 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 Târgu Mureș water?
4.3 gpg, equal to 4.1 °dH, 7.3 °fH or 73 mg/L calcium carbonate.
What dishwasher salt setting should I use in Târgu Mureș?
For 73 mg/L (4.1 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Târgu Mureș?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Aquaserv: Calitatea apei potabile Tg-Mures, iulie 2026 (2026-07). Method: own measurement. Aquaserv: Calitatea apei potabile Tg-Mures, iulie 2026 · Outdated figure? Tell us