These softeners seem so simple. All they contain are resin beads.
Looking at the Stainless Water Filter, it looks like it is made out of PVC.
One would think that a couple of dividers to make the water flow over the most surface area of the beads would do the trick.
Are there any chemistry guys that can give me some advice on this?
PVC and resin beads are cheap.
Update after first post
. Saw a youtube video, and can't believe how simple the media exchange unit.