Water hardness in Vukovar
164 mg/L hard
Tap water in Vukovar is hard: 164 mg/L (9.6 gpg · 9.2 °dH · 16.4 °fH).
Source: Vodovod grada Vukovara d.o.o. analytical report 03076_B (Vukovar, Šibenska 14, sampled 23.06.2026), HRN ISO 6059 Ukupna tvrdoća (2026-06) · data checked 2026-10-22
Vodovod grada Vukovara published an analytical report for one tap: Šibenska 14, sampled on 23 June 2026, with total hardness of 164 mg/L CaCO3. Another sample at the same point in April 2026 read differently, so a single reading can move. The monthly city reports are scanned images that could not be read, so this is not a citywide average.
Croatian suppliers report total hardness in mg/L CaCO₃ or °dH.
Water data
| Total hardness | 164 mg/L |
|---|---|
| Utility | Vodovod grada Vukovara d.o.o. (VGV) |
How Vukovar compares
- Tap water in Vukovar is 52 % softer than the median of the 13 cities we track in Croatia (339 mg/L).
- By hardness it ranks 12 of 13 in Croatia (1 = hardest); 8 % of these cities have softer water.
- Nearest city with clearly harder water: Požega, 103 km away (339 mg/L).
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 Vukovar
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| 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 Vukovar water hard or soft?
It is hard: 164 mg/L as CaCO₃ (9.6 gpg, 9.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Vukovar safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Croatian suppliers report total hardness in mg/L CaCO₃ or °dH.
How many grains per gallon is Vukovar water?
9.6 gpg, equal to 9.2 °dH, 16.4 °fH or 164 mg/L calcium carbonate.
What dishwasher salt setting should I use in Vukovar?
For 164 mg/L (9.2 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Vukovar?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Vodovod grada Vukovara d.o.o. analytical report 03076_B (Vukovar, Šibenska 14, sampled 23.06.2026), HRN ISO 6059 Ukupna tvrdoća (2026-06). Method: own measurement. Vodovod grada Vukovara d.o.o. analytical report 03076_B (Vukovar, Šibenska 14, sampled 23.06.2026), HRN ISO 6059 Ukupna tvrdoća · Outdated figure? Tell us