1. Use a mild detergent and water. This is the most gentle method, and it may be all that is needed to remove light watermarks. Simply mix a few drops of mild dish soap with water and apply it to the tiles with a sponge. Rub the tiles gently in a circular motion, then rinse them with clean water.
2. Use a vinegar and baking soda paste. This paste is a bit more abrasive, but it is also effective at removing watermarks. To make the paste, mix equal parts vinegar and baking soda. Apply the paste to the tiles with a sponge, then rub them gently in a circular motion. Let the paste sit for several minutes, then rinse the tiles with clean water.
3. Use a commercial tile cleaner. There are a number of commercial tile cleaners available that can be used to remove watermarks. Follow the directions on the product label for best results.
4. Use a pumice stone. A pumice stone is a natural abrasive that can be used to remove watermarks. To use a pumice stone, wet the tile and then rub the pumice stone over the watermark in a circular motion. Be careful not to apply too much pressure, as this could damage the tile.
5. Call a professional. If you cannot remove the watermarks yourself, you can call a professional tile cleaner. A professional will have the experience and equipment necessary to remove the watermarks safely and effectively.
Here are some additional tips for preventing watermarks on ceramic tiles:
* Wipe up spills immediately.
* Avoid using harsh chemicals on the tiles.
* Seal the tiles with a water-resistant sealant.
* Avoid using a squeegee on the tiles, as this can cause the water to spread and create watermarks.