Water hardness in Muqui
78 mg/L moderately hard
Tap water in Muqui is moderately hard: 78 mg/L (4.6 gpg · 4.4 °dH · 7.8 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia Espirito Santense De Saneamento), CC BY-ND 3.0 (2025) · data checked 2026-10-20
Range across supply zones: 21–139 mg/L.
Muqui, in Espírito Santo, is served by Companhia Espírito Santense de Saneamento. The 2025 reported hardness is 78.0 milligrams per litre as calcium carbonate, which is moderate. Individual values span 20.9 to 139.0 milligrams per litre, a wide spread within one year.
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 | 78 mg/L |
|---|---|
| Utility | Companhia Espirito Santense De Saneamento |
How Muqui compares
- Tap water in Muqui is 84 % harder than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 382 of 1915 in Brazil (1 = hardest); 80 % of these cities have softer water.
- In Espírito Santo it is number 1 of 61 cities; the regional median is 21 mg/L.
- Nearest city with clearly softer water: Atílio Vivacqua, 12 km away (20 mg/L).
Ranking of the hardest and softest water in Brazil →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Muqui
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 4 °dH |
| AEG / Electrolux | 2 |
| Beko | 1st |
| Hoover | S1 |
| LG | H1 |
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 Muqui water hard or soft?
It is moderately hard: 78 mg/L as CaCO₃ (4.6 gpg, 4.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Muqui 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 Muqui water?
4.6 gpg, equal to 4.4 °dH, 7.8 °fH or 78 mg/L calcium carbonate.
What dishwasher salt setting should I use in Muqui?
For 78 mg/L (4.4 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Muqui?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia Espirito Santense De Saneamento), CC BY-ND 3.0 (2025). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Companhia Espirito Santense De Saneamento), CC BY-ND 3.0 · Outdated figure? Tell us