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This should be a drain problem.
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The floor drain effect is not good, and the water seal layer is not sealed, resulting in the sewer smell.
1.It is that the copper sheet inside the socket is in poor contact with the plug, so disassemble it and use a screwdriver to get it, or replace it with a new one. >>>More
You didn't block the ventilation duct in the bathroom, there were gaps, and when the wind blew, the wind passed through the gaps in the bathroom to cause an echo, and you blocked it with something to drink tightly.
How do I get rid of odors in the bathroom?
It is because of the thermal expansion and contraction of the floor slab, and the water leakage is because there are gaps, so there is water leakage. >>>More
LED is very weak current can be driven, when you switch on the zero line, after the power is off, there is still a voltage of 220V on the live line, this will produce an induced current, which will drive the light strip to emit a weak light, in this case, you can change the switch to the live line, after the power off, there will be no induced current.