Did67 wrote:In France, first of all start by inquiring about the quality of the water and its "hardness" at the town hall and / or the concessionaire. On the compulsory information sheets, there is notably a small paragraph on this point (whether or not it is necessary to "treat" the water).
Now, in some dishwashers they put a small colored reagent paper with a color chart that allows you to read the hardness of your water according to the color and therefore to adjust the salt and / or rinse aid. No enough feedback yet to know if it's effective, crap or ... if it's sponsored by the "regenerating" salt merchants