Water hardness in Mtarfa
168 mg/L hard
Tap water in Mtarfa is hard: 168 mg/L (9.8 gpg · 9.4 °dH · 16.8 °fH).
Source: Water Services Corporation (Malta), Audit Monitoring 2025 (2025-05-07) · data checked 2026-10-22
The Water Services Corporation reports total hardness in mg/L CaCO₃; Maltese tap water blends reverse-osmosis and groundwater, and the EU Drinking Water Directive sets no limit for hardness.
Water data
| Total hardness | 168 mg/L |
|---|---|
| Utility | Water Services Corporation |
How Mtarfa compares
- Tap water in Mtarfa is 6 % harder than the median of the 23 cities we track in Malta (158 mg/L).
- By hardness it ranks 5 of 23 in Malta (1 = hardest); 82 % of these cities have softer water.
- Nearest city with clearly softer water: Gharghur, 6 km away (131 mg/L).
Ranking of the hardest and softest water in Malta →
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 Mtarfa
| 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 Mtarfa water hard or soft?
It is hard: 168 mg/L as CaCO₃ (9.8 gpg, 9.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Mtarfa safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. The Water Services Corporation reports total hardness in mg/L CaCO₃; Maltese tap water blends reverse-osmosis and groundwater, and the EU Drinking Water Directive sets no limit for hardness.
How many grains per gallon is Mtarfa water?
9.8 gpg, equal to 9.4 °dH, 16.8 °fH or 168 mg/L calcium carbonate.
What dishwasher salt setting should I use in Mtarfa?
For 168 mg/L (9.4 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Mtarfa?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Water Services Corporation (Malta), Audit Monitoring 2025 (2025-05-07). Method: figure published by the water supplier. Water Services Corporation (Malta), Audit Monitoring 2025 · Outdated figure? Tell us