Thu Aug 24, 2006 6:23 pm
If I soak bottles in my unsoftened well water with bleach for more than a day they get that gritty white residue. A quick rinse in full strength white vinegar takes it right off. don't even need a soak. for some reason, the ion-exchange softened water doesn't do this nearly as much.
Although I've not tried it, I bet star san would work just as well, but I would not save the star san after using it for this.