How to get chlorine stain off glass?

Answer 1

Chances are that what you are seeing is minerals from the chlorinated water that splashed on the window. If there is a build up, you may need to try the chemical method first and then do the physical method.

• Try using 0000 size steel wool - dry - on the window.
• Spray window with white vinegar solution, let it sit a few minutes and then wipe off.
• Once you get the windows clean, apply rain-x to prevent it from happening again.

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The chlorine-donor itself is soluble in water (it has to be!) so any precipitate it leaves will wash off with clean water. As the first sentence says, if on glass the stain is far more likely to be of other minerals.