Water Hardness Atlas ZIP / postcode

Water hardness in Putten

6.8 °dH hard

Tap water in Putten is hard: 6.8 °dH (121 mg/L · 7.1 gpg · 12.1 °fH).

<6060–120120–180>180 mg/L

Source: Vitens, waterhardheid per postcode (2026-10) (2026-10) · data checked 2026-10-19

Range across supply zones: 112–121 mg/L.

Vitens supplies this area, mainly from groundwater, and the sandy ridges of the Veluwe and Utrecht Hills typically give water with comparatively little lime. The reported hardness is 121.4 mg/L CaCO₃, with values from 112.4 to 121.4 mg/L depending on the street. Kettles, shower heads and washing machine heating elements scale up noticeably, so regular descaling is worthwhile.

Dutch suppliers report °dH; most networks are softened centrally to 5.6–8.4 °dH.

Water data

Total hardness6.8 °dH

How Putten compares

Ranking of the hardest and softest water in the Netherlands →

What it means at home

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 Putten

BrandSetting for this water
BoschH01
Miele7 °dH
AEG / Electrolux2
Beko2nd
HooverS1
LGH2

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 Putten water hard or soft?

It is hard: 121 mg/L as CaCO₃ (7.1 gpg, 6.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Putten safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Dutch suppliers report °dH; most networks are softened centrally to 5.6–8.4 °dH.

How many grains per gallon is Putten water?

7.1 gpg, equal to 6.8 °dH, 12.1 °fH or 121 mg/L calcium carbonate.

What dishwasher salt setting should I use in Putten?

For 121 mg/L (6.8 °dH) check your manufacturer's table: level 4–5.

Do I need a water softener in Putten?

Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.

Source

Source: Vitens, waterhardheid per postcode (2026-10) (2026-10). Method: figure published by the water supplier. Vitens, waterhardheid per postcode (2026-10) · Outdated figure? Tell us

Nearby cities

Ermelo5.7 °dHGarderen6.7 °dHVoorthuizen6.9 °dHHarderwijk5.7 °dHNijkerk6.2 °dHZeewolde4.5 °dH
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