The blue is cool

I thought at first, the blue color is built up in the machine (fully automatic) off. When future reference came out that the blue color comes out again. What this is the best: if no blue is at the end of Entkalkungsprozedur, you do not know that more acid in the machine. That's a good feeling !! So far, I was not sure. After that spilled out blue waters still pour into the kettle, then the even decalcified. By color then kanns not happen that the roommate is then used inadvertently as tea water. These Tabs I buy again, even if they are not exactly a bargain.