Water hardness in Mysłowice
112 mg/L moderately hard
Tap water in Mysłowice is moderately hard: 112 mg/L (6.5 gpg · 6.3 °dH · 11.2 °fH).
Source: PPIS Katowice, obszarowa ocena jakości wody za rok 2025 (2026-03-17) (2025) · data checked 2026-10-29
The Katowice sanitary inspectorate's 2025 area assessment gives 112 mg/L CaCO₃ for the Mysłowice network, which is moderate. That is much lower than the very hard values common elsewhere in Poland. The network is supplied by GPW, and the figure is a single value for the area. Limescale is a minor issue, so a whole-house softener is usually unnecessary.
Polish suppliers report total hardness in mg/L CaCO₃; the drinking-water regulation range is 60–500 mg/L.
Water data
| Total hardness | 112 mg/L |
|---|---|
| Utility | GPW S.A. / Mysłowice network |
How Mysłowice compares
- Tap water in Mysłowice is 54 % softer than the median of the 91 cities we track in Poland (245 mg/L).
- By hardness it ranks 86 of 91 in Poland (1 = hardest); 6 % of these cities have softer water.
- In śląskie it is number 10 of 15 cities; the regional median is 168 mg/L.
- Nearest city with clearly softer water: Czechowice-Dziedzice, 35 km away (85 mg/L).
- Nearest city with clearly harder water: Sosnowiec, 10 km away (168 mg/L).
Ranking of the hardest and softest water in Poland →
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 Mysłowice
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 6 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| 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 Mysłowice water hard or soft?
It is moderately hard: 112 mg/L as CaCO₃ (6.5 gpg, 6.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Mysłowice 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 Mysłowice water?
6.5 gpg, equal to 6.3 °dH, 11.2 °fH or 112 mg/L calcium carbonate.
What dishwasher salt setting should I use in Mysłowice?
For 112 mg/L (6.3 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Mysłowice?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: PPIS Katowice, obszarowa ocena jakości wody za rok 2025 (2026-03-17) (2025). Method: figure published by the water supplier. PPIS Katowice, obszarowa ocena jakości wody za rok 2025 (2026-03-17) · Outdated figure? Tell us