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From practical experience, in addition to the above places, there is another place that is easy to overlook, that is, whether the connection between the drain pipe and the sewer pipe of your washbasin is sealed. If they are already sealed, then you should pay attention to one thing: all floor drains must be watered once a day and sealed with water.
Especially now in winter, the indoor heating temperature is high and dry, and the water that plugs the floor drain can easily evaporate, so it is necessary to water it every day. In addition, if your washbasin is not in use, turn off the drain switch in the basin and seal some water, so that your bathroom will be odor-free. Hope it helps!
The point is whether the drain in the basin of your washbasin is closed and the water is sealed. This place smells terrible! I've encountered it before!
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It is recommended to check it out:
1. Is there an S bend in the basin drain? Is the S-bend sealed to the sewer installation?
2. Is there water in the floor drain? There is no smell of water.
3. Is there water in the toilet? There is no smell of water.
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Personally, I feel that it is still a problem with floor drains, ordinary floor drains, add an anti-odor mouth, add oil to it, and cooking oil can be, but then the floor drain can not be used.
How many floors is in your house? If the first floor may be the sewer main pipe blocked, my family has such a situation, find a dredge pipe to come, after all, people are professional.
If there is no floor drain on the balcony, then you need to make a hole under the side of the balcony in the corner of the wall, and then connect a drain pipe to the sewer pipe reserved by the property for your air conditioner. The problem is solved.
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You can buy the anti-odor one used on the Internet, the silicone one kind of floor drain.
No way, the best effect is to knock on the heavy sinking elbow, in order to solve the problem of not coming out of the smell, the washbasin to the good addition, no need to knock can be replaced.