Water hardness in Seara
37 mg/L soft
Tap water in Seara is soft: 37 mg/L (2.2 gpg · 2.1 °dH · 3.7 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia Catarinense De Aguas E Saneamento), CC BY-ND 3.0 (2026) · data checked 2026-10-20
Range across supply zones: 4–43 mg/L.
Tap water in Seara, Santa Catarina, is supplied by Companhia Catarinense De Aguas E Saneamento. The reported hardness is 37.2 milligrams per litre as calcium carbonate, which is soft, with readings between 4.2 and 42.8. The figure comes from the Ministry of Health's 2026 water quality data.
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 | 37 mg/L |
|---|---|
| Utility | Companhia Catarinense De Aguas E Saneamento |
How Seara compares
- Tap water in Seara is 12 % softer than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 1127 of 1915 in Brazil (1 = hardest); 41 % of these cities have softer water.
- In Santa Catarina it is number 109 of 238 cities; the regional median is 34 mg/L.
- Nearest city with clearly softer water: Itá, 11 km away (24 mg/L).
- Nearest city with clearly harder water: Xavantina, 18 km away (208 mg/L).
Ranking of the hardest and softest water in Brazil →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Seara
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 2 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Seara water hard or soft?
It is soft: 37 mg/L as CaCO₃ (2.2 gpg, 2.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Seara 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 Seara water?
2.2 gpg, equal to 2.1 °dH, 3.7 °fH or 37 mg/L calcium carbonate.
What dishwasher salt setting should I use in Seara?
For 37 mg/L (2.1 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Seara?
No. With soft water a softener adds nothing.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Companhia Catarinense De Aguas E Saneamento), CC BY-ND 3.0 (2026). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Companhia Catarinense De Aguas E Saneamento), CC BY-ND 3.0 · Outdated figure? Tell us