Water hardness in Lavradio
150 mg/L hard
Tap water in Lavradio is hard: 150 mg/L (8.8 gpg · 8.4 °dH · 15 °fH).
Source: Camara Municipal do Barreiro - Qualidade da Agua Zona Z2 Sete Portais, 2.º trimestre 2026 (2026-06) · data checked 2026-11-05
Lavradio is in the Barreiro municipality, whose water utility reports by supply zone. The second-quarter 2026 report for zone Z2 Sete Portais gives 150 mg/L CaCO₃, hard. We have not confirmed that this zone covers all of Lavradio, so the value may not apply to every address. At this level, scale on heaters and taps is likely, and a softener or descaling routine is worth considering.
Portuguese operators report "dureza total" in mg/L CaCO₃ to ERSAR.
Water data
| Total hardness | 150 mg/L |
|---|---|
| Utility | Camara Municipal do Barreiro (entidade gestora, PCQA) |
How Lavradio compares
- Tap water in Lavradio is 80 % harder than the median of the 77 cities we track in Portugal (83 mg/L).
- By hardness it ranks 4 of 77 in Portugal (1 = hardest); 95 % of these cities have softer water.
- In 19 it is number 3 of 4 cities; the regional median is 158 mg/L.
- Nearest city with clearly softer water: Areeiro, 11 km away (76 mg/L).
- Nearest city with clearly harder water: Corroios, 9 km away (232 mg/L).
Ranking of the hardest and softest water in Portugal →
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 Lavradio
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 8 °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 Lavradio water hard or soft?
It is hard: 150 mg/L as CaCO₃ (8.8 gpg, 8.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Lavradio safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Portuguese operators report "dureza total" in mg/L CaCO₃ to ERSAR.
How many grains per gallon is Lavradio water?
8.8 gpg, equal to 8.4 °dH, 15 °fH or 150 mg/L calcium carbonate.
What dishwasher salt setting should I use in Lavradio?
For 150 mg/L (8.4 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Lavradio?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Camara Municipal do Barreiro - Qualidade da Agua Zona Z2 Sete Portais, 2.º trimestre 2026 (2026-06). Method: figure published by the water supplier. Camara Municipal do Barreiro - Qualidade da Agua Zona Z2 Sete Portais, 2.º trimestre 2026 · Outdated figure? Tell us