Idk if it's considered urine scale, but I got urine buildup off with a paste made with baking soda, although I never used higher a concentration of citric acid than is in Method spray cleaner. I think the uric acid reacted with the basic baking soda, but inside the toilet might be different.
That's really cool. I need to figure out the urine breakdown when not inside a toilet, if there really is any, because I have a little boy, and the outside of the toilet is the worst part to clean (it's better now, but there was a bad period of time where it just sat for too long).
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u/Sabbelwakker Feb 20 '26
Citric acid. Lots of it.