Can anyone tell me what s going on with the bad smell of the sewer in the toilet basin?

Don't worry about the smell of the washbasin drainage pipe, it can be solved without 2 cents, and the method is simple and practical.

Answer (1) The floor drain should have a draft of 5 cm, in the past, in addition to the flush toilet drain design with a reverse bend, the bathroom and kitchen floor drain drain also have a reverse bend, usually rely on the sealing of water to prevent odor. At present, in order to increase the floor height and reduce the cost, many new residential areas have canceled the anti-drain under the floor drain, but adopted a new type of anti-odor floor drain to ensure that the sewer odor does not escape. These anti-odor floor drains are often made of PVC material, although they are not as beautiful as the stainless steel and copper floor drains sold on the market, but the anti-odor effect is particularly good!

Many owners have replaced the floor drain that looks beautiful but is of unqualified quality when renovating, resulting in a peculiar smell in the bathroom.

2) Seal the sewer pipe to connect part of the sink sewer pipe and the kitchen sewer pipe and the connection of the sewer, these details will become the channel for the sewer odor to enter the room if there is no strict sealing. Since the sewer interface is in a relatively hidden place, it is easy to ignore it when the decoration is completed and accepted, and it should attract the attention of the owner. The specific practice recommended by experts is to ask the renovation worker to seal the gap at the interface with glass glue or other adhesive so that the gas cannot be discharged.

3) Odor-proof floor drain needs to be irrigatedThe odor-proof floor drain on the market at present is mainly composed of three parts: the upper cover, the floor drain body and the floating cover, in which the floating cover can float up and down with the water in the floor drain body when there is water, and the sewer pipe will be covered when there is no water or less water, so as to prevent the odor from the sewer pipe from being reversed to the room. Although the floating lid can be used to cover the sewer pipe, in order to achieve better results, it is necessary to maintain the depth of the water seal in the floor drain, so it should be filled with water to maintain the depth of the liquid level when used.

Solution: Put a solid fragrance in the bathroom, which can adjust the smell of the bathroom, and you can also light sandalwood, which is the same shape as mosquito coils. The sewer hose can be made into an S bend, so that there will be a certain amount of water in the pipe, which can play a role in preventing odor.

Replace the floor drain with a water seal of more than 5 cm; Check whether the sanitary ware is in place when it is installed and sealed or whether the sanitary ware itself is qualified, and if there is no seal in place, it will be repaired in time; If there are cracks in the sewer pipe, repair the sewer pipe or replace the pipe.

The main reasons are:

1) The floor drain should have a draft of 5 cm, in the past, in addition to the flush toilet drain design with a reverse bend, the bathroom and kitchen floor drain drain also have a reverse bend, usually rely on the sealing of water to prevent the odor. At present, in order to increase the floor height and reduce the cost, many new residential areas have canceled the anti-drain under the floor drain, but adopted a new type of anti-odor floor drain to ensure that the sewer odor does not escape. These anti-odor floor drains are often made of PVC material, although they are not as beautiful as the stainless steel and copper floor drains sold on the market, but the anti-odor effect is particularly good!

Many owners have replaced the floor drain that looks beautiful but is of unqualified quality when renovating, resulting in a peculiar smell in the bathroom.

2) Seal the sewer pipe to connect part of the sink sewer pipe and the kitchen sewer pipe and the connection of the sewer, these details will become the channel for the sewer odor to enter the room if there is no strict sealing. Since the sewer interface is in a relatively hidden place, it is easy to ignore it when the decoration is completed and accepted, and it should attract the attention of the owner. The specific practice recommended by experts is to ask the renovation worker to seal the gap at the interface with glass glue or other adhesive so that the gas cannot be discharged.

3) Odor-proof floor drain needs to be irrigatedThe odor-proof floor drain on the market at present is mainly composed of three parts: the upper cover, the floor drain body and the floating cover, in which the floating cover can float up and down with the water in the floor drain body when there is water, and the sewer pipe will be covered when there is no water or less water, so as to prevent the odor from the sewer pipe from being reversed to the room. Although the floating lid can be used to cover the sewer pipe, in order to achieve better results, it is necessary to maintain the depth of the water seal in the floor drain, so it should be filled with water to maintain the depth of the liquid level when used.

Solution: Put a solid fragrance in the bathroom, which can adjust the smell of the bathroom, and you can also light sandalwood, which is the same shape as mosquito coils. The sewer hose can be made into an S bend, so that there will be a certain amount of water in the pipe, which can play a role in preventing odor.

Replace the floor drain with a water seal of more than 5 cm; Check whether the sanitary ware is in place when it is installed and sealed or whether the sanitary ware itself is qualified, and if there is no seal in place, it will be repaired in time; If there are cracks in the sewer pipe, repair the sewer pipe or replace the pipe.

This is often the case, and the main reasons are:

1) The floor drain should have a draft of 5 cm, in the past, in addition to the flush toilet drain design with a reverse bend, the bathroom and kitchen floor drain drain also have a reverse bend, usually rely on the sealing of water to prevent the odor. At present, in order to increase the floor height and reduce the cost, many new residential areas have canceled the anti-drain under the floor drain, but adopted a new type of anti-odor floor drain to ensure that the sewer odor does not escape. These odor-proof floor drains are often made of PVC materials, which are far less beautiful than the stainless steel and copper floor drains sold on the market.

2) Seal the sewer pipe to connect part of the sink sewer pipe and the kitchen sewer pipe and the connection of the sewer, these details will become the channel for the sewer odor to enter the room if there is no strict sealing. Since the sewer interface is in a relatively hidden place, it is easy to ignore it when the decoration is completed and accepted, and it should attract the attention of the owner. The specific practice recommended by experts is to ask the renovation worker to seal the gap at the interface with glass glue or other adhesive so that the gas cannot be discharged.

3) Odor-proof floor drain needs to be irrigatedThe odor-proof floor drain on the market at present is mainly composed of three parts: the upper cover, the floor drain body and the floating cover, in which the floating cover can float up and down with the water in the floor drain body when there is water, and the sewer pipe will be covered when there is no water or less water, so as to prevent the odor from the sewer pipe from being reversed to the room. Although the floating lid can be used to cover the sewer pipe, in order to achieve better results, it is necessary to maintain the depth of the water seal in the floor drain, so it should be filled with water to maintain the depth of the liquid level when used.

You can do it according to your own situation.

Odor in the bathroom is a headache, where does the smell come from?

Generally, the first thing that comes to mind is floor drain, basin sewer seal, toilet seal, and so on.

When these locations are confirmed to be fine, but there is still a strong smell in the bathroom, what is the root cause of the problem?

I have encountered such a situation, the newly renovated house, the floor drain is sealed with water, the water under the wash basin is made of a backwater bend, and the toilet is also strictly sealed, but the bathroom still often has an obvious smell.

After a period of observation, I found that the problem was coming from the bathroom exhaust vent.

Nowadays, in order to improve the sealing and sound insulation effect of the house, most of the people use broken bridge aluminum doors and windows, and the sealing performance is very good. At this time, if the kitchen turns on the range hood, a large amount of air is discharged outdoor, the doors and windows are sealed very tightly, and the outdoor air has no channel to supplement the room, at this time, the bathroom exhaust outlet forms an airflow backflow, although the exhaust outlet is also installed with a check valve, the sealing is very poor, the airflow backflow is obvious, the smoke of the cigarette can see the air backflow at the exhaust outlet, and even the backflow can be felt by hand.

Solution: If there are windows in the kitchen, be sure to open a little window when turning on the range hood so that the outdoor air can form convection.

If the kitchen doesn't have windows, open a few windows in the living room or bedroom adjacent to the kitchen to allow air to come in.

The bathroom exhaust outlet is a high-quality check valve, preferably with a rubber sealing ring.

It is recommended that you use a irrigation pass to clean the pipe regularly, remove odor and sterilize, and prevent blockage!

That washbasin hose of yours must have gone straight down the drain. It's definitely going to be disgusting. The smell followed the hose to the countertop.

The whole bathroom smells bad. There is a special washbasin anti-odor floor drain on Taobao. It's very convenient, just plug it directly into the sewer pipe.

I changed 1 at home, and it was photographed on Taobao, and it was immediately tasteless when I plugged it in. The brand of Shuangjiajia is very good.

Everyone's decoration habits, are the washbasin drainage directly connected to the sewer pipe, even if there are a lot of anti-odor line drain pipe to the basin, in fact, the anti-odor effect is also very poor, so the more comprehensive way is not to connect the drain pipe directly to the sewer pipe, but to install a dual-purpose anti-odor floor drain, that is, we generally say that the washing machine floor drain, this kind of floor drain has an interface to connect the drainage pipe, and does not affect the ground drainage. In this way, it has a double anti-odor effect, and the problem of odor can be well solved.

The sewer pipe is completed in an S-shape, and the results are immediate!

Abstract Our dormitory is also like this, because the sink sewer is connected to the toilet sewer of other dormitories, so sometimes washing may be a smell as soon as the toilet in other dormitories is flushed. 

Can anyone tell me what's going on with the bad smell of the sewer in the toilet basin?

Our dormitory is also like this, because the sink drain is connected to the toilet drain of other dormitories, so sometimes washing may be a smell when other dormitories flush the toilet. 

Maybe it's because the sink you're using has a drain that is connected to the sewer next door or upstairs and downstairs.