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It is a kind of fungus like Ganoderma lucidum, which is too humid in your home, and it will disappear if it is ventilated and dried frequently.
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It's moldy, it's all fungus, it should be not paved at the beginning, and the caulking is not filled, you clean it up, and then go to the tile store to buy some caulk and water and wipe it yourself I hope it can help you
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Stalactites! It can be washed off with hydrochloric acid.
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The filler used when you put the floor tiles in your toilet is not good, not mildew-proof, it is recommended to clean it up and then apply a good filler.
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That's some fungus stuff. Don't eat it.
Just keep it dry for a while.
The handle of the faucet is made of zinc alloy, which may be oxidized, it may be that you have not kept the faucet clean, and you can wash it.
No harm! Connect all the electrical parts of the toilet and the metal of the faucet to the PEN wire with a wire to prevent electric shock.
When most people decorate the bathroom wall, they prefer to use ceramic tiles instead, because the cost of ceramic tiles is not high, and they can be moisture-proof and easy to cleanPlexiglass, for example, is one of them. >>>More
Flowing water from the tile joints to the outside, with anything can not be blocked, or first find the leaking pipe to repair before you can stop the water