...switched detergents? Anyway, I have always had problems with hard water, since my where I live there water is harder, I started to put rinse aid but I didn't like it because it leaves a kinda greasy film and the hard water persisted, but last week I bough a very inexpensive detergent and I got worse hard water stains very thick and difficult to remove, especially in my silicon utensils and black and plastic dishes, actually the some of the silicon utensils especially the oldest ones are now almost white! Or do you think it is maybe my dishwasher that it is not working right? Please help!