Water hardness in Piumhi
149 mg/L hard
Tap water in Piumhi is hard: 149 mg/L (8.7 gpg · 8.4 °dH · 14.9 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Saae Servico Autonomo De Agua E Esgoto), CC BY-ND 3.0 (2026) · data checked 2026-10-20
Range across supply zones: 109–189 mg/L.
The autonomous water and sewage service (SAAE) of Piumhi in Minas Gerais reports 149.2 mg/L CaCO₃, with samples between 109.4 and 189.1 mg/L. That is hard water by our scale, though within the 300 mg/L limit in Portaria GM/MS nº 888/2021. Expect scale on kettles and heaters. The source water is not named in the data we used.
Portaria GM/MS nº 888/2021 sets a maximum of 300 mg/L CaCO₃ for total hardness (dureza total); operators report it in mg/L to SISAGUA.
Water data
| Total hardness | 149 mg/L |
|---|---|
| Utility | Saae Servico Autonomo De Agua E Esgoto |
How Piumhi compares
- Tap water in Piumhi is 251 % harder than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 65 of 1915 in Brazil (1 = hardest); 97 % of these cities have softer water.
- In Minas Gerais it is number 12 of 290 cities; the regional median is 41 mg/L.
- Nearest city with clearly softer water: São João Batista do Glória, 42 km away (12 mg/L).
- Nearest city with clearly harder water: Arcos, 56 km away (231 mg/L).
Ranking of the hardest and softest water in Brazil →
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 Piumhi
| 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 Piumhi water hard or soft?
It is hard: 149 mg/L as CaCO₃ (8.7 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 Piumhi safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Portaria GM/MS nº 888/2021 sets a maximum of 300 mg/L CaCO₃ for total hardness (dureza total); operators report it in mg/L to SISAGUA.
How many grains per gallon is Piumhi water?
8.7 gpg, equal to 8.4 °dH, 14.9 °fH or 149 mg/L calcium carbonate.
What dishwasher salt setting should I use in Piumhi?
For 149 mg/L (8.4 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Piumhi?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Saae Servico Autonomo De Agua E Esgoto), CC BY-ND 3.0 (2026). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Saae Servico Autonomo De Agua E Esgoto), CC BY-ND 3.0 · Outdated figure? Tell us