Lemon . This citrus fruit also has disinfectant and lightening properties, which help eliminate stains. Rub half a lemon directly on the dark stain, leave to act for a few minutes then clean with a cloth. Repeat if the stain doesn’t come out.
Borax . It is one of the most powerful ingredients for removing stains on almost all bathroom surfaces. Apply borax directly to the stain, then pour vinegar over it. After 20 minutes, scrub with a sponge, then rinse with water and dry well. Wear gloves and a mask while applying borax.
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