Hi,
I use active carbon+ceramic filter system (made by Katadyn).
I use it as my tap water taste isn't that great in general.
My water profile is the following:
Tap:
pH 6.6
Cl- 100.7 ppm
Conductivity 470 micS/cm
Ca+2 - 43.9ppm
Mg 6.94ppm
Total hardness 138.2ppm CaCO3
Alkalinity 118.84...