Asked on Oct 09, 2017

How to remove a blue ring in my toilet stool at the top of the water?

I have toilets in two bathrooms. I clean them the same. I have NEVER used anything blue in them! I have a blue line about 1/2 inch in the one. I have no idea what causes it! I haven't found anything to remove it. Asked plumber and he was puzzled and had no answer. I'd sure appreciate an answer. Has anyone else ever had this happen???

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