Water hardness in Brežice
10.1 °dH very hard
Tap water in Brežice is very hard: 10.1 °dH (180 mg/L · 10.5 gpg · 18 °fH).
Source: NLZOH Novo mesto test report 25/112374 (well Brezina), published by Komunala Brežice (2025) · data checked 2026-10-23
The Krško–Brežice plain is supplied from groundwater in the Sava valley gravels. The reported hardness is 180.3 mg/L CaCO₃. Scale forms fast on heaters and fittings; a water softener is a common remedy.
Slovenian suppliers report total hardness in °dH ("nemške stopinje").
Water data
| Total hardness | 10.1 °dH |
|---|---|
| Utility | Javno podjetje Komunala Brežice d.o.o. |
How Brežice compares
- Tap water in Brežice is 8 % softer than the median of the 15 cities we track in Slovenia (11 °dH).
- By hardness it ranks 11 of 15 in Slovenia (1 = hardest); 29 % of these cities have softer water.
- Nearest city with clearly softer water: Lendava, 98 km away (6.8 °dH).
- Nearest city with clearly harder water: Novo mesto, 35 km away (14.7 °dH).
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 Brežice
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S2 |
| 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 Brežice water hard or soft?
It is very hard: 180 mg/L as CaCO₃ (10.5 gpg, 10.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Brežice safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Slovenian suppliers report total hardness in °dH ("nemške stopinje").
How many grains per gallon is Brežice water?
10.5 gpg, equal to 10.1 °dH, 18 °fH or 180 mg/L calcium carbonate.
What dishwasher salt setting should I use in Brežice?
For 180 mg/L (10.1 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Brežice?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: NLZOH Novo mesto test report 25/112374 (well Brezina), published by Komunala Brežice (2025). Method: own measurement. NLZOH Novo mesto test report 25/112374 (well Brezina), published by Komunala Brežice · Outdated figure? Tell us