Anyone else use Brita water filters and find they just don't last as long now? We used to find we could stretch them to almost 2 months before the kettle started furring up, but now we're nowhere near 4 weeks and there's limescale in my tea. We scrub the inside of the kettle every time we change the filter so there's no build up in the kettle.
Are there any alternative filter products out there or are we going to have to get a purifier installed?