Water hardness in Zelená Lhota
0.18 mmol/L soft
Tap water in Zelená Lhota is soft: 0.18 mmol/L (18 mg/L · 1.1 gpg · 1 °dH).
Source: ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody (2026) · data checked 2026-10-21
ČEVAK reports 18.0 mg/L hardness as CaCO₃ for Zelená Lhota in the Plzeň Region, which is soft. The utility page does not say which source supplies the village. Soft water means little scale, but detergent doses can usually be kept low, and a softener is not needed.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 0.18 mmol/L |
|---|---|
| Calcium (mg/L) | 4.6 |
| Magnesium (mg/L) | 1.6 |
| Utility | ČEVAK a.s. |
How Zelená Lhota compares
- Tap water in Zelená Lhota is 85 % softer than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 1514 of 1516 in Czechia (1 = hardest); 0 % of these cities have softer water.
- In Plzeňský kraj it is number 73 of 75 cities; the regional median is 1.64 mmol/L.
- Nearest city with clearly softer water: Děpoltice, 4 km away (0.14 mmol/L).
- Nearest city with clearly harder water: Dešenice, 4 km away (0.26 mmol/L).
Ranking of the hardest and softest water in Czechia →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Zelená Lhota
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 1 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Zelená Lhota water hard or soft?
It is soft: 18 mg/L as CaCO₃ (1.1 gpg, 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 Zelená Lhota safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
How many grains per gallon is Zelená Lhota water?
1.1 gpg, equal to 1 °dH, 1.8 °fH or 18 mg/L calcium carbonate.
What dishwasher salt setting should I use in Zelená Lhota?
For 18 mg/L (1 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Zelená Lhota?
No. With soft water a softener adds nothing.
Source
Source: ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody (2026). Method: figure published by the water supplier. ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody · Outdated figure? Tell us