The water filter I use to break for a few years and what always satisfied. After the last move I had found that I had to descale the kettle every week. How can looked the other devices from inside one only imagine. So the filter had to be activated quickly. I then found that you also can order here at a very reasonable Pack the cartridge, thus allowing for easy home delivery. I used to often forget to take care of supplies. If I install the last cartridge today I order then directly new. However, I see here at Amazon previously always the prices at which package is the best value for money.
I use filtered water for almost everything (coffee maker, kettle, flowers water, steam cleaners, cleaning water for the floor, cooking water, etc.) I use a cartridge sometimes even longer than 4 weeks, when I was not much at home at the time. However, I see a longer use, or a so-called. Reactivation as not useful if you only considered only the hygienic aspect. The cartridge is wet and will remain so in the filter (some residual liquid remains always are), and there may even form nuclei. So I throw the cartridge away well and use a fresh one.