Water hardness in Fanlu
186 mg/L very hard
Tap water in Fanlu is very hard: 186 mg/L (10.9 gpg · 10.4 °dH · 18.6 °fH).
Source: Taiwan Water Corporation open data (2026) · data checked 2026-10-20
Fanlu in Chiayi County has a reported hardness of 186 mg/L as CaCO3 from Taiwan Water Corporation (2026 open data). That is very hard by the scale used here, close to the boundary with the hard band. Scale on heating elements and glass is a likely effect. The source file does not name the water source.
Taiwan Water Corporation reports total hardness in mg/L CaCO₃; the drinking-water standard is 300 mg/L.
Water data
| Total hardness | 186 mg/L |
|---|---|
| Utility | Taiwan Water Corporation |
How Fanlu compares
- Tap water in Fanlu is 48 % harder than the median of the 265 cities we track in Taiwan (126 mg/L).
- By hardness it ranks 57 of 265 in Taiwan (1 = hardest); 77 % of these cities have softer water.
- In Chiayi County it is number 3 of 14 cities; the regional median is 120 mg/L.
- Nearest city with clearly softer water: Zhuqi, 7 km away (141 mg/L).
- Nearest city with clearly harder water: Fangyuan, 57 km away (233 mg/L).
Ranking of the hardest and softest water in Taiwan →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Fanlu
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S2 |
| 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 Fanlu water hard or soft?
It is very hard: 186 mg/L as CaCO₃ (10.9 gpg, 10.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Fanlu 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 Fanlu water?
10.9 gpg, equal to 10.4 °dH, 18.6 °fH or 186 mg/L calcium carbonate.
What dishwasher salt setting should I use in Fanlu?
For 186 mg/L (10.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Fanlu?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Taiwan Water Corporation open data (2026). Method: figure published by the water supplier. Taiwan Water Corporation open data · Outdated figure? Tell us