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Anonymous users2024-01-24Is this the case only on the tiles near the urinal?
Did you drip the toilet cleaner or other acidic detergent that cleaned the urinal onto the tiles and didn't deal with them in time?
You can find a cleaning company to deal with it for you and quickly put on protection.
It is estimated that the quality of the tiles is not very good, the density is low, it is easy to absorb water, and it will become moldy in a few days, and the fundamental solution is to replace the bricks.
It should be waterproof treatment slightly improper, and the water is moldy and multi-pass ventilation to make the bathroom dry.
This is urine scale, the toilet will be used for a long time, and this can only be cleaned with sulfuric acid. Don't worry about your family's talent, and replace it with a new toilet in five years.
The toilet has been dark for a long time, and it is cleaned with a porcelain cleaner.
If there are not many cracks, it is recommended to clean the cracks and seal them with a suitable color of structural adhesive. Both beautiful and waterproof! >>>More