Unfortunately, this water bottle has water stains that cannot be removed with soap and water. I have resisted other methods up to this point because I do not want to make it worse. I have heard of having the stains “polished” off but have not tried to find anyone to do this. Does anyone have any experience with this?
Since the initial draft of this post, I have spoken with a fellow collector regarding tumbling to remove the stains, similar to polishing rocks by putting them in a tumbler. I haven’t had the time to build a tumbler yet but when I do I will let you know how successful I was.