Water hardness in Anzio
16 °fH hard
Tap water in Anzio is hard: 16 °fH (160 mg/L · 9.3 gpg · 9 °dH).
Source: Acqualatina, qualità dell'acqua per comune (valori medi II semestre 2020) (2020) · data checked 2026-10-29
Range across supply zones: 90–230 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °fH | mg/L | ||
|---|---|---|---|
| Anzio (serbatoio Via del Giglio) | 9 | 90 | moderately hard |
| Anzio - frazione Lavinio (serbatoio Spadellata) | 23 | 230 | very hard |
This figure is over 3 years old; hardness may have changed.
Anzio is in the southern Lazio area run by Acqualatina, whose network draws on springs and wells (for the Gaeta area, for example, the Capodacqua wells and the Mazzoccolo springs); limestone ranges around the plain explain the mineral content. The published value is 160.0 mg/L CaCO₃ across 2 supply zones, with readings from 90.0 to 230.0 mg/L, which counts as hard water (a 2020 figure that may have changed since). Values differ across the area, so check your own address before buying a softener; appliances with heating elements need descaling now and then, and soap lathers less easily.
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Water data
| Total hardness | 16 °fH |
|---|---|
| calcio_mg_l | 62.9 |
| magnesio_mg_l | 18 |
| Utility | Acqualatina |
How Anzio compares
- Tap water in Anzio is 25 % softer than the median of the 629 cities we track in Italy (21.2 °fH).
- By hardness it ranks 424 of 629 in Italy (1 = hardest); 32 % of these cities have softer water.
- In Lazio it is number 46 of 54 cities; the regional median is 27.2 °fH.
- Nearest city with clearly softer water: Nettuno, 4 km away (9 °fH).
- Nearest city with clearly harder water: Cisterna di Latina, 23 km away (22 °fH).
Ranking of the hardest and softest water in Italy →
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 Anzio
| 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 Anzio water hard or soft?
It is hard: 160 mg/L as CaCO₃ (9.3 gpg, 9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Anzio 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 Anzio water?
9.3 gpg, equal to 9 °dH, 16 °fH or 160 mg/L calcium carbonate.
What dishwasher salt setting should I use in Anzio?
For 160 mg/L (9 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Anzio?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Acqualatina, qualità dell'acqua per comune (valori medi II semestre 2020) (2020). Method: older figure, source currently unavailable. Acqualatina, qualità dell'acqua per comune (valori medi II semestre 2020) · Outdated figure? Tell us