I guess my first question is why?
We have rather hard water with traces of clay. So, we run a whole well filter (Hellenbrand sediment filter with Tubidex media) that removes any clay and particles to about 3 microns or so. The water gets pumped into tanks for air exposure to oxidize any dissolved iron and precipitate it. Then the water goes to the house, where it is softened, removing even more sediment and the calcium and magnesium.
The nice thing about the Hellenbrand sediment filters is that they periodically self regenerate, so one isn't trying to remember to change filters, and there isn't anything growing on a clogging filter.
I can't say enough good things about the Hellenbrand filters and softeners. In my experience, they are much better designed and manufactured than their competitors.
All the best,
Peter