Water hardness in Venosa
36.5 °fH very hard
Tap water in Venosa is very hard: 36.5 °fH (365 mg/L · 21.3 gpg · 20.4 °dH).
Source: Acquedotto Lucano, monitoraggio analitico (rapporti di prova) (2024-09) · data checked 2026-10-20
Acquedotto Lucano publishes laboratory reports by reservoir, and the one we use for Venosa dates from September 2024. Hardness calculated from its calcium and magnesium values is 364.6 mg/L CaCO₃, which is very hard water. It is a single report, not a citywide median, and it is more than a year old. We have not verified the water source, so check recent results for your address.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 36.5 °fH |
|---|
How Venosa compares
- Tap water in Venosa is 72 % harder than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 37 of 629 in Italy (1 = hardest); 94 % of these cities have softer water.
- In Basilicata it is number 1 of 7 cities; the regional median is 18.2 °fH.
- Nearest city with clearly softer water: Lavello, 10 km away (15.3 °fH).
- Nearest city with clearly harder water: Angri, 107 km away (63 °fH).
Ranking of the hardest and softest water in Italy →
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 Venosa
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 20 °dH |
| AEG / Electrolux | 5 |
| Beko | 6th |
| Hoover | S3 |
| LG | H3 |
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 Venosa water hard or soft?
It is very hard: 365 mg/L as CaCO₃ (21.3 gpg, 20.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Venosa safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
How many grains per gallon is Venosa water?
21.3 gpg, equal to 20.4 °dH, 36.5 °fH or 365 mg/L calcium carbonate.
What dishwasher salt setting should I use in Venosa?
For 365 mg/L (20.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Venosa?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Acquedotto Lucano, monitoraggio analitico (rapporti di prova) (2024-09). Method: computed from supplier's calcium and magnesium. Acquedotto Lucano, monitoraggio analitico (rapporti di prova) · Outdated figure? Tell us