Method 2 using citric acid is a nice option that works well for tougher stains, according to Stein. “It’s effective at breaking down mineral buildup and is safer to use than something like ...

Eew. Sometimes no matter how hard you scrub, those pesky rings and stains stuck to the inside of your toilet bowl just won’t budge. Thankfully, there’s no need to waste time and energy scrubbing away.

The best approach depends on whether the stains are organic material or mineral deposits. Q: My old toilet has black stains where you see water, not on the sides of the bowl. I have tried using Zep ...