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It should be the smell of the toilet, the toilet may not be installed, reinstall it, add a sealing flange to the lower mouth of the toilet to try, if not, change the toilet.
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Buy a floor drain and toilet with a water seal.
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It may be a problem with the toilet, if there is a window in the bathroom, open the window, spray air freshener if there is no window, usually pay attention to washing the toilet, and flush the toilet after urinating!
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Presumably a problem with the toilet.
The smell of your bathroom may be related to the smell of the floor drain, buy an anti-odor cover, cover it, 5 yuan for two.
The foul smell in the bathroom is generally the cause of the floor drain, and under the floor drain is an upside-down bowl with several arched openings around the bowl, which can make the water on the floor flow smoothly into the sewer pipe. There is a groove around the sewer pipe, and due to the accumulation of water, the water in the groove must not exceed the arch gap of 10,000, so that the odor will not come out.
It is not the reason for the toilet, the smell should come out of the pipe, there are basically 4 places 1, the floor drain (the floor drain is not good to seal the smell, or the floor drain has no water for a long time, because most of the floor drain is sealed by water storage) 2, the basin sewer pipe and the original sewer pipe are not sealed well or the water trap is not well handled. 3. The drain of the washing machine or the bathtub and other drains are not properly handled. 4. There is no gas outlet at the top of the pipeline installation, and the gas when flushing the toilet has no place to come out, and it comes out from the floor drain and other places that may leak.
Because the rainy weather is low and the air is not circulated, the smell will be the smell that you smell.