[cameronh90]

I use the Brita Maxtra+, and have confirmed with test strips and en electric meter that it reduces my 400ppm to 150ppm or so. Not zero, but significantly increases the interval between rescaling and results in a more pleasant cup of tea. Not sure about the others, but the Maxtra+ is advertised specifically to soften water.

However the filters do not last as long as they claim. I have to replace the filter maybe 2/3 through it’s rated life or I start to get limescale and tea scum.

I don’t drink the Brita water though. I much prefer the taste of hard water.