That is what I've been doing as I search for a solution to this problem.
But, and maybe I should have made this clear in my original post, but I'm also concerned about the buildup of the spotting on the shower tile, tub. I concur that wiping down the fixtures takes just a minute or so, but you surely wouldn't suggest drying down the entire tub and shower?
And like I said in the earlier post, I've noticed pitting on some of the chrome hinges for the glass shower door.....where water may collect as it dries.
I've tried rain-x, car polish, etc. It helps a bit, in that it causes the water to bead up much more, thereby having less spots...But the spots still accumulate.
So, yes, I will continue to take the various preventative efforts to minimize the damage of the spots, but I would prefer to alleviate the problem altogether.....
You've been in the water business a long time.....any thoughts on the silica possibility? And any experience using the Siliphos or Polyphosphate treatment?