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If you just remove the toilet thing, it won't damage the ground, because the waterproof layer is under the tile, and the toilet is just glued to the tile.
My house had just been renovated, and I watched as the workers glued the toilets to the floor. Glue it with glass.
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This will not be, after dismantling, you can brush a layer of waterproof at the place where the toilet is installed, and you can use it with confidence.
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The toilet bowl is installed on the surface of the tile, as long as it does not damage the waterproof layer of the tile, it has no effect.
Happy Chinese New Year.
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If you install it with glass glue, you can disassemble it with confidence.
The problem of the waterproof layer is certain, otherwise it will not leak downstairs. >>>More
If the handrail is installed in the later stage, if it is only buried in the waterproof protective layer, it will be fine, if you are not at ease, wrap a layer of waterproof membrane at the root of the handrail.
It will not damage the waterproof layer, because the waterproof layer is deep under the floor tiles, but the oxalic acid may affect the finish of the floor tiles, and the oxalic acid should be cleaned immediately.
It is very likely that it will, depending on how deep the hole you drill, usually, the thickness of the ground of the cast-in-place board is 15-18cm, and the protective layer is mostly 5cm, if it is too deep, it will destroy the waterproof layer upstairs.
It is easy to destroy the original waterproofing during the second decoration. If it is not repaired in time, leakage will occur in the future, so the waterproof layer of the bathroom must be redone when redecorating. >>>More