Water hardness in Gararu
32 mg/L soft
Tap water in Gararu is soft: 32 mg/L (1.9 gpg · 1.8 °dH · 3.2 °fH).
Source: Ministério da Saúde, SISAGUA – controle semestral (Igua Sergipe Sa), CC BY-ND 3.0 (2025) · data checked 2026-10-20
Range across supply zones: 27–34 mg/L.
Igua Sergipe Sa supplies Gararu in Sergipe. The 2025 data report 31.9 milligrams per litre as calcium carbonate, which is soft. Readings ranged from 26.5 to 34.0 milligrams per litre.
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 | 32 mg/L |
|---|---|
| Utility | Igua Sergipe Sa |
How Gararu compares
- Tap water in Gararu is 25 % softer than the median of the 1915 cities we track in Brazil (43 mg/L).
- By hardness it ranks 1268 of 1915 in Brazil (1 = hardest); 34 % of these cities have softer water.
- In Sergipe it is number 56 of 72 cities; the regional median is 44 mg/L.
- Nearest city with clearly softer water: Nossa Senhora das Dores, 44 km away (12 mg/L).
- Nearest city with clearly harder water: Itabi, 8 km away (50 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 Gararu
| 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 Gararu water hard or soft?
It is soft: 32 mg/L as CaCO₃ (1.9 gpg, 1.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Gararu 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 Gararu water?
1.9 gpg, equal to 1.8 °dH, 3.2 °fH or 32 mg/L calcium carbonate.
What dishwasher salt setting should I use in Gararu?
For 32 mg/L (1.8 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Gararu?
No. With soft water a softener adds nothing.
Source
Source: Ministério da Saúde, SISAGUA – controle semestral (Igua Sergipe Sa), CC BY-ND 3.0 (2025). Method: figure published by the water supplier. Ministério da Saúde, SISAGUA – controle semestral (Igua Sergipe Sa), CC BY-ND 3.0 · Outdated figure? Tell us