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If the building does not have air vents or exhaust holes, you should call a driller to drill the holes.
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This does not belong to the plumber, there is a professional ventilation hole.
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Generally, it is called a plumber to do it.
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It should be used in conjunction with civil engineering reserved holes.
The plumber should ensure that the water pipe does not seep and do not leak, and the outside of the water pipe belongs to the construction team, and the money should not be paid by the plumber.
If you want to suspend the ceiling, you can consider going to the top, which is convenient for maintenance in the future.
Use cement leveling, and at the same time use glass water to make waterproofing on the cement surface, and finally the waterproof material is glued to the cement with a blowtorch, and the surrounding area should be higher than the floor tiles.
Don't you even have a pipe well or a pipeline area? Pipe wells and pipeline areas are generally in the corners of the bathroom, and ventilation pipes are generally among them. When decorating, don't seal the ventilation pipes. >>>More
Yes, otherwise you open the window to take a shower, and you can close the window with the exhaust port, and you are not afraid of being bored.