Water hardness in Bundaberg
65 mg/L moderately hard
Tap water in Bundaberg is moderately hard: 65 mg/L (3.8 gpg · 3.7 °dH · 6.5 °fH).
Source: Bundaberg Regional Council, 2023-24 Drinking Water Service Annual Report (2024) · data checked 2026-11-05
Range across supply zones: 41–89 mg/L.
Bundaberg Regional Council's 2023-24 annual report gives a hardness of 65.3 mg/L CaCO₃, computed from results that run from 41.3 to 89.3 mg/L. Hardness varies across the region's supply areas, so the figure for your street may sit above or below the median. At this level, light scale on kettles and shower screens is the usual effect.
Australian Drinking Water Guidelines: aesthetic target ≤ 200 mg/L CaCO₃.
Water data
| Total hardness | 65 mg/L |
|---|---|
| Utility | Bundaberg Regional Council |
How Bundaberg compares
- Tap water in Bundaberg is 23 % softer than the median of the 307 cities we track in Australia (85 mg/L).
- By hardness it ranks 188 of 307 in Australia (1 = hardest); 39 % of these cities have softer water.
- In Queensland it is number 17 of 29 cities; the regional median is 68 mg/L.
- Nearest city with clearly harder water: Bargara, 13 km away (123 mg/L).
Ranking of the hardest and softest water in Australia →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Bundaberg
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 4 °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 Bundaberg water hard or soft?
It is moderately hard: 65 mg/L as CaCO₃ (3.8 gpg, 3.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Bundaberg safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Australian Drinking Water Guidelines: aesthetic target ≤ 200 mg/L CaCO₃.
How many grains per gallon is Bundaberg water?
3.8 gpg, equal to 3.7 °dH, 6.5 °fH or 65 mg/L calcium carbonate.
What dishwasher salt setting should I use in Bundaberg?
For 65 mg/L (3.7 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Bundaberg?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Bundaberg Regional Council, 2023-24 Drinking Water Service Annual Report (2024). Method: computed from supplier's calcium and magnesium. Bundaberg Regional Council, 2023-24 Drinking Water Service Annual Report · Outdated figure? Tell us