Compare tap water hardness in 51 cities in Flandre occidentale, Belgium. Average: 34°fH (Average quality).
In Flandre occidentale province, tap water hardness averages 34°fH, corresponding to hard water. The softest water is found in Aartrijke (21°fH, score 7/10) and the hardest in Wervik (39°fH, score 4/10). The Belgian national average is 30°fH. All 51 cities in our database have water that complies with European potability standards (Directive 2020/2184).
The average tap water hardness in Flandre occidentale province is 34°fH, corresponding to hard water. Among the 51 cities covered, the softest water is found in Aartrijke (21°fH) and the hardest in Wervik (39°fH). The Belgian national average is 30°fH.
Yes. Tap water in Flandre occidentale province meets European potability standards (Directive 2020/2184). The hardness of 34°fH does not affect sanitary safety, only appliance maintenance and taste. All 51 cities in our database show compliant water.
With an average of 34°fH, a water softener or anti-scale filter is a worthwhile investment in Flandre occidentale. Limescale visibly shortens the lifespan of boilers, washing machines and coffee makers. A softener is recommended in particular for cities above 35°fH such as Wervik (39°fH).
Water in Flandre occidentale province is distributed by SWDE (Wallonia), De Watergroep / VMM (Flanders) or VIVAQUA (Brussels), depending on the municipality. Data in our database comes from official analyses published by these utilities in 2024.
All 51 cities in Flandre occidentale province with their TH hardness values are listed on this page. Click on any city name to get full details: quality index, sanitary compliance, appliance impact and personalised recommendations.
Data: SWDE (Wallonia), De Watergroep / VMM (Flanders), VIVAQUA (Brussels) (2024).