Water hardness in Xianxi
155 mg/L hard
Tap water in Xianxi is hard: 155 mg/L (9.1 gpg · 8.7 °dH · 15.5 °fH).
Source: Taiwan Water Corporation open data (2026) · data checked 2026-10-20
Xianxi in Changhua County is reported at 155 mg/L as CaCO3 by Taiwan Water Corporation, which is hard. We could not verify the exact source of the town's water, so this is the utility's published value for its supply. Expect scale in kettles and water heaters.
Taiwan Water Corporation reports total hardness in mg/L CaCO₃; the drinking-water standard is 300 mg/L.
Water data
| Total hardness | 155 mg/L |
|---|---|
| Utility | Taiwan Water Corporation |
How Xianxi compares
- Tap water in Xianxi is 23 % harder than the median of the 265 cities we track in Taiwan (126 mg/L).
- By hardness it ranks 85 of 265 in Taiwan (1 = hardest); 67 % of these cities have softer water.
- In Changhua County it is number 16 of 23 cities; the regional median is 184 mg/L.
- Nearest city with clearly softer water: Shalu, 15 km away (120 mg/L).
- Nearest city with clearly harder water: Buyan, 15 km away (205 mg/L).
Ranking of the hardest and softest water in Taiwan →
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 Xianxi
| 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 Xianxi water hard or soft?
It is hard: 155 mg/L as CaCO₃ (9.1 gpg, 8.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Xianxi safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Taiwan Water Corporation reports total hardness in mg/L CaCO₃; the drinking-water standard is 300 mg/L.
How many grains per gallon is Xianxi water?
9.1 gpg, equal to 8.7 °dH, 15.5 °fH or 155 mg/L calcium carbonate.
What dishwasher salt setting should I use in Xianxi?
For 155 mg/L (8.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Xianxi?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Taiwan Water Corporation open data (2026). Method: figure published by the water supplier. Taiwan Water Corporation open data · Outdated figure? Tell us