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Anonymous users2024-01-24First, the color of the surface layer of the floor is light yellow, and the color will be particularly bright after being stained with water or washed clean.
The second is that the floor is polluted by limescale or something, and it will be printed into it after a long time.
The third is the cement under the floor or the glue used with cement, which is caused by alkali.
Fourth, the floor tiles have not been treated with alkali prevention on the back, and they have been salted out like people sweating.
Fifth, you try to rinse it with laundry detergent, if it doesn't work, use some grass pickling, because you don't know what kind of stain the surface is, you can only use the trial method. Thank you.
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Anonymous users2024-01-23Because you're buying yellow flooring.
This indicates that the embedded water pipe below the ground is damaged, and it is recommended that you must look for the leakage, if necessary, re-do the waterproofing, and then pave and decorate after completing the water test.
There are two scenarios for you:
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