I actually have had this idea long before we started talking because my partner builds ion exchange skids for the wine industry that correct the pH of the wine with a similar technology
Only reason I’ve never tried it is the beads I need for neutralization never come with the OH bonded to it its always CL and idk how to change it which is why I asked you 
This was neutralization on my ion exchange d8 using 50grams of baking soda and salt per liter
1 wash did that