The dose guidance can change with water hardness. A quantity appropriate to one supply may be unsuitable after moving house, changing a softener arrangement or using a different water source.
Understanding this situation
Use the detergent manufacturer's table and a reliable hardness value for your actual supply. Town names alone are not precise dosing information, and this website does not infer the chemistry at an individual property. A household softener can also mean the water reaching the appliance differs from a broad area description.
A useful next step
Check the supplier or the documented treatment arrangement before adjusting the dose. Record any relevant change if rinsing or foaming altered at the same time. Do not add descaler or more detergent simply because someone describes the area as hard water; cleaner selection and dosing should follow the appliance and product instructions.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.