Water hardness in Świdnica
264 mg/L very hard
Tap water in Świdnica is very hard: 264 mg/L (15.4 gpg · 14.8 °dH · 26.4 °fH).
Source: ŚPWiK Świdnica – Twardość wody (2025) · data checked 2026-10-29
Range across supply zones: 258–268 mg/L.
3 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| mg/L | mg/L | ||
|---|---|---|---|
| ul. Strzelińska 6 (sieć) | 264 | 264 | very hard |
| ZUW Bokserska | 268 | 268 | very hard |
| ZUW Pszenno | 258 | 258 | very hard |
ŚPWiK Świdnica publishes a hardness of 264 mg/L CaCO₃ on its water hardness page, with three zones between 258 and 268 mg/L. The zones are close, so the town can be treated as uniformly very hard. In practice that means regular descaling of kettles and washing machines. The utility page does not state the raw water origin.
Polish suppliers report total hardness in mg/L CaCO₃; the drinking-water regulation range is 60–500 mg/L.
Water data
| Total hardness | 264 mg/L |
|---|---|
| Utility | ŚPWiK Świdnica |
How Świdnica compares
- Tap water in Świdnica is 8 % harder than the median of the 91 cities we track in Poland (245 mg/L).
- By hardness it ranks 33 of 91 in Poland (1 = hardest); 64 % of these cities have softer water.
- In dolnośląskie it is number 3 of 7 cities; the regional median is 245 mg/L.
- Nearest city with clearly softer water: Wrocław, 48 km away (207 mg/L).
- Nearest city with clearly harder water: Dzierżoniów, 17 km away (483 mg/L).
Ranking of the hardest and softest water in Poland →
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 Świdnica
| 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 Świdnica 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 Świdnica safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Polish suppliers report total hardness in mg/L CaCO₃; the drinking-water regulation range is 60–500 mg/L.
How many grains per gallon is Świdnica 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 Świdnica?
For 264 mg/L (14.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Świdnica?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: ŚPWiK Świdnica – Twardość wody (2025). Method: figure published by the water supplier. ŚPWiK Świdnica – Twardość wody · Outdated figure? Tell us