Water hardness in Avellino
18.3 °fH very hard
Tap water in Avellino is very hard: 18.3 °fH (183 mg/L · 10.7 gpg · 10.3 °dH).
Source: Alto Calore Servizi, qualità dell'acqua: valori medi I semestre 2026, Avellino (AV) (2026-06) · data checked 2026-10-29
Alto Calore Servizi supplies Avellino from Apennine springs, among them the Cassano Irpino group, which also feeds other parts of Campania and Puglia; limestone massifs of the Irpinia are the usual reason for the mineral content. The reported figure is 183.0 mg/L CaCO₃, which counts as very hard water. Kettles, steam irons and dishwashers collect scale fast at this level, and a softener is a common answer.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 18.3 °fH |
|---|---|
| calcio_mg_l | 63.3 |
| magnesio_mg_l | 6 |
| Utility | Alto Calore Servizi |
How Avellino compares
- Tap water in Avellino is 14 % softer than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 384 of 629 in Italy (1 = hardest); 39 % of these cities have softer water.
- In Campania it is number 33 of 33 cities; the regional median is 40 °fH.
- Nearest city with clearly harder water: Sarno, 19 km away (37 °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 Avellino
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| 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 Avellino water hard or soft?
It is very hard: 183 mg/L as CaCO₃ (10.7 gpg, 10.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Avellino 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 Avellino water?
10.7 gpg, equal to 10.3 °dH, 18.3 °fH or 183 mg/L calcium carbonate.
What dishwasher salt setting should I use in Avellino?
For 183 mg/L (10.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Avellino?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Alto Calore Servizi, qualità dell'acqua: valori medi I semestre 2026, Avellino (AV) (2026-06). Method: figure published by the water supplier. Alto Calore Servizi, qualità dell'acqua: valori medi I semestre 2026, Avellino (AV) · Outdated figure? Tell us