yes, I've heard you soak it in vinegar and detergent for 4 hours.
Stains from chess board can be removed by using amonia which is present in glass cleaners.
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Water-based stains such as coffee, tea, and juice can be removed with water or a mild detergent. Oil-based stains like grease, makeup, and ink can be removed with solvents such as rubbing alcohol, acetone, or dish soap. Protein-based stains like blood or sweat can be treated with cold water or enzymatic cleaners.
soap and water...
I have heard that it removes deep stains. It problably removes surface stains too. I have deep stains and crest whitestrips somewhat removed them but im going to bleach them soon.
Tea stains can be removed from partial braces by soaking them in effervescent tablets overnight. White vinegar can also help remove stains from false teeth.
Many stains can be removed with alcohol.
If the stain is fresh, then the stain can be removed by simply rubbing the stain with a damp cloth. Older stains can be removed with a leather cleaner from a brand like Pledge.
What kind of acid and what kind of flooring is very important to this !
Green stains (copper color) that cannot be removed indicate you might have a pH problem. K
To remove lichen from a canvas awning, you can mix a solution of water and mild detergent, scrub the affected areas with a soft brush or cloth, and rinse thoroughly with clean water. Avoid using harsh chemicals or pressure washers as they can damage the canvas material. Repeat the process if necessary until the lichen is completely removed.
There should be no need to destroy vital evidence of a crime.