We have hard water, which means the toilet bowl slowly turns a faint orange no matter how often I scrub. Bleach made it worse, not better, which took me an embarrassingly long time to figure out.

The fix ended up being two cheap things I already had in the house.

Citric acid is your friend

Rust and mineral buildup dissolve in acid. Sprinkle a couple tablespoons of citric acid powder into the bowl, let it sit for an hour, then give it a light scrub with the brush. The orange ring lifts off without any harsh chemicals.

No citric acid? White vinegar works too. Pour in a cup, let it sit, and scrub.

When the stain is really stubborn

For rings that have been there for years, reach for a pumice stone. Wet it first, then rub the stain gently. Pumice is soft enough that it will not scratch porcelain, but it grinds away the mineral crust.

Here is the order I follow now:

• Flush, then add citric acid or vinegar.
• Wait an hour, then scrub.
• For tough spots, finish with a wet pumice stone.

One thing to avoid: never mix acid cleaners with bleach. The fumes are genuinely dangerous. Pick one or the other, and rinse well between uses.

The bowl went from embarrassing to white in about an hour, and I did not spend a dime on specialty products.