Water Hardness in Normandie
The Normandie region typically has a water hardness of 20–35°f (French degrees). This hardness is explained by the geology of the subsoil: chalk of the Pays de Caux.
The main cities affected: Rouen, Caen, Le Havre, Évreux.
To find the exact hardness for your municipality, visit qualite-eau.fr (French Ministry of Health portal) or consult our complete map of water hardness in France.
Impact of Limescale in Normandie
With a hardness of 20–35°f, water in Normandie is moderately to fairly hard. The consequences:
- Scale deposits on pipes, water heaters and household appliances
- Energy overconsumption of 7 to 25% depending on deposit thickness
- White marks on taps and shower walls
- Dry skin and dull hair
- Reduced lifespan of appliances by 30 to 50%
Read also: 5 signs your water is too hard.
The LIMPEO Solution for Normandie
The LIMPEO, designed by JAEGER SAS, works regardless of water hardness. It transforms calcite into aragonite through electromagnetic waves:
- 88% scale reduction — scientifically validated
- 0 chemicals, 0 salt — water retains its minerals
- 0 maintenance for a minimum of 10 years
- 10-minute installation with no plumber required
Discover our technology, consult the scientific studies and explore our product range. Calculate your savings with our online tools.
FAQ — Hard Water in Normandie
What is the water hardness in Rouen?
The typical hardness in Rouen is 20–35°f. The exact value varies by neighbourhood and water source. Check qualite-eau.fr for your precise address.
Does LIMPEO work with water at 20–35°f?
Yes. LIMPEO transforms calcite into aragonite regardless of calcium concentration. The harder the water, the greater the savings.