Re: Rust Stains On White Shower Surrounds
You may want to look into a filtration system to go along with the water softener, to help pull out some of that iron. In lieu of that, as long as you keep the surface in good condition and you don't allow the water to dry in place, you shouldn't have any staining issues. What this means is to regularly clean the surface to remove deposits that cause the staining, and regularly apply a protectant to the surface to help repel adhesion of the minerals that are staining.
For fiberglass and acrylic surfaces, Gel Gloss is a good choice for cleaning, polishing, and protecting the surface. For glass and trim, Rain-X.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!