Water hardness in Grivegnée (Liège): 45°fH, quality index 3/10. Official Belgian data.
✓ Compliant with sanitary standardsGrivegnée has very hard water (45°fH). Monthly descaling of all appliances is essential. A water softener pays for itself in 2 to 3 years.
Belgian tap water is subject to European Directive 2020/2184. The sanitary compliance indicator shows whether the latest official analyses found any non-conformities on parameters such as bacteriology, nitrates, pesticides or heavy metals.
The TH (Total Hardness) measures calcium and magnesium content. Below 15°fH: very soft. From 15 to 25: soft. From 25 to 32: moderately hard. From 32 to 42: hard. Above 42: very hard. Grivegnée's water is very hard at 45°fH.
Maintenance budget: ~£126/year
For 2 persons, water at 45°f deposits around 2.2 kg of limescale per year in your appliances. Estimated cost in descalers, salt and filters.
Calcium: ~72 mg per litre
Your water provides 72 mg of calcium/L, which is 7% of the recommended daily intake.
Filter jug: cartridge every 3 months
At 45°f, replace the cartridge every 3 months. An under-sink filter lasts 6 to 12 months.
The tap water hardness in Grivegnée is 45°fH, corresponding to very hard water. In comparison, the Belgian national average is 30°fH and the Liège provincial average is 30°fH.
Yes. The water in Grivegnée is sanitary compliant (European Directive 2020/2184). The hardness of 45°fH affects taste and appliance maintenance, not safety. Belgian tap water is subject to strict regular monitoring by SWDE (Wallonia).
With 45°fH, a water softener is a worthwhile investment in Grivegnée. Limescale reduces the lifespan of boilers, washing machines and coffee makers and increases energy consumption by 10 to 15% per mm of scale. An anti-scale filter is a minimum at this hardness level.
A hardness of 45°fH corresponds to approximately 72 mg of calcium per litre, or 7% of the recommended daily intake. This calcium is not dangerous; hard water can even contribute to your daily calcium intake.
Water in Grivegnée is distributed by SWDE (Wallonia). Data source: SWDE/VMM/VIVAQUA 2024.
Data: SWDE (Wallonia), De Watergroep / VMM (Flanders), VIVAQUA (Brussels) (2024).