Water hardness in Chania
158 mg/L hard
Tap water in Chania is hard: 158 mg/L (9.2 gpg · 8.8 °dH · 15.8 °fH).
Source: EDEYA labcheck – ΔΕΥΑ Χανίων (2025) · data checked 2026-10-21
Range across supply zones: 156–159 mg/L.
Municipal water utilities (DEYA) in Greece usually combine boreholes in limestone aquifers with reservoirs and springs. The reported hardness is 157.7 mg/L CaCO₃, with measurements from 156.3 to 159.0 mg/L. Limescale is visible on kettles, taps and heaters, and a scale-reduction filter or softener can help protect appliances.
Greek utilities report total hardness in mg/L CaCO₃.
Water data
| Total hardness | 158 mg/L |
|---|---|
| Utility | ΔΕΥΑ Χανίων |
How Chania compares
- Tap water in Chania is 33 % softer than the median of the 134 cities we track in Greece (237 mg/L).
- By hardness it ranks 96 of 134 in Greece (1 = hardest); 29 % of these cities have softer water.
- In Crete it is number 21 of 23 cities; the regional median is 260 mg/L.
- Nearest city with clearly harder water: Mournies, 4 km away (203 mg/L).
Ranking of the hardest and softest water in Greece →
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 Chania
| 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 Chania water hard or soft?
It is hard: 158 mg/L as CaCO₃ (9.2 gpg, 8.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Chania safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Greek utilities report total hardness in mg/L CaCO₃.
How many grains per gallon is Chania water?
9.2 gpg, equal to 8.8 °dH, 15.8 °fH or 158 mg/L calcium carbonate.
What dishwasher salt setting should I use in Chania?
For 158 mg/L (8.8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Chania?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: EDEYA labcheck – ΔΕΥΑ Χανίων (2025). Method: figure published by the water supplier. EDEYA labcheck – ΔΕΥΑ Χανίων · Outdated figure? Tell us