Water hardness in Jasło
162 mg/L hard
Tap water in Jasło is hard: 162 mg/L (9.5 gpg · 9.1 °dH · 16.2 °fH).
Source: MPGK Jasło – Informacja o jakości wody marzec 2020 (2020) · data checked 2026-10-29
This figure is over 3 years old; hardness may have changed.
MPGK Jasło reported about 162 mg/L CaCO₃ in its March 2020 water quality notice, which is hard water. The figure is older than most in this country, so the current value may differ slightly. Scale builds up on heaters, but less quickly than in the very hard towns of central Poland.
Polish suppliers report total hardness in mg/L CaCO₃; the drinking-water regulation range is 60–500 mg/L.
Water data
| Total hardness | 162 mg/L |
|---|---|
| Utility | MPGK Jasło |
How Jasło compares
- Tap water in Jasło is 34 % softer than the median of the 91 cities we track in Poland (245 mg/L).
- By hardness it ranks 82 of 91 in Poland (1 = hardest); 10 % of these cities have softer water.
- In podkarpackie it is number 7 of 8 cities; the regional median is 186 mg/L.
- Nearest city with clearly harder water: Rzeszów, 50 km away (263 mg/L).
Ranking of the hardest and softest water in Poland →
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 Jasło
| 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 Jasło water hard or soft?
It is hard: 162 mg/L as CaCO₃ (9.5 gpg, 9.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Jasło 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 Jasło water?
9.5 gpg, equal to 9.1 °dH, 16.2 °fH or 162 mg/L calcium carbonate.
What dishwasher salt setting should I use in Jasło?
For 162 mg/L (9.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Jasło?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: MPGK Jasło – Informacja o jakości wody marzec 2020 (2020). Method: figure published by the water supplier. MPGK Jasło – Informacja o jakości wody marzec 2020 · Outdated figure? Tell us