Water Hardness Atlas ZIP / postcode

Water hardness in Naters

4.5 °fH soft

Tap water in Naters is soft: 4.5 °fH (45 mg/L · 2.6 gpg · 2.5 °dH).

<6060–120120–180>180 mg/L

Source: Wasserversorgung Naters (via SVGW trinkwasser.ch) (2025) · data checked 2026-10-21

Range across supply zones: 9–121 mg/L.

In the Alps, drinking water comes from springs and groundwater, and water from crystalline rock such as gneiss is much softer than on the Plateau. Wasserversorgung Naters reports a hardness of 45.0 mg/L CaCO₃, with values from 9.0 to 121.0 mg/L depending on the address. Scale builds up only slowly here, so a softener is rarely needed.

In der Schweiz wird meist in °fH angegeben (1 °fH = 0,56 °dH).

Water data

Total hardness4.5 °fH
UtilityWasserversorgung Naters

How Naters compares

Ranking of the hardest and softest water in Switzerland →

What it means at home

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 Naters

BrandSetting for this water
BoschH00
Miele3 °dH
AEG / Electrolux1
Beko1st
HooverS0
LGH0

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 Naters water hard or soft?

It is soft: 45 mg/L as CaCO₃ (2.6 gpg, 2.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Naters safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. In der Schweiz wird meist in °fH angegeben (1 °fH = 0,56 °dH).

How many grains per gallon is Naters water?

2.6 gpg, equal to 2.5 °dH, 4.5 °fH or 45 mg/L calcium carbonate.

What dishwasher salt setting should I use in Naters?

For 45 mg/L (2.5 °dH) check your manufacturer's table: level 0–1, usually no salt.

Do I need a water softener in Naters?

No. With soft water a softener adds nothing.

Source

Source: Wasserversorgung Naters (via SVGW trinkwasser.ch) (2025). Method: figure published by the water supplier. Wasserversorgung Naters (via SVGW trinkwasser.ch) · Outdated figure? Tell us

Nearby cities

Brig-Glis7.2 °fHBettmeralp4.2 °fHVisp13.7 °fHBellwald2.4 °fHSt. Niklaus6.2 °fHLauterbrunnen12.3 °fH
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