How to deal with the odor in the high-rise flue … two one-way valves are installed, but it still doesn't work. Looking for a property, the property said

1. According to the odor in the high-rise flue, it is still not possible to install two one-way valves. The analysis of the problem that all the exhaust gas from charcoal roast mutton downstairs enters your home is as follows:

1, the exhaust flue of your house is blocked;

2. The exhaust flue of your house is not blocked, but the circulation area is not enough;

Whether it is blockage or insufficient circulation area, it may be caused by accidentally falling into sundries or bricks during construction. Just clear it up.

Second, the solution:

1, calculate the distance from your home to the roof flue;

2. According to the calculated length, prepare a nylon rope with the thickness of little finger. The length of nylon rope is more than 4m from your home to the flue on the roof;

3. Prepare an iron block with a diameter of about 15cm and a weight of 1.5kg to 2.5kg, which can be tied with a rope;

4. Take the prepared nylon rope and iron block to the roof, fasten the iron block (fasten the nylon rope head), and slowly lower the iron block along the flue. After feeling that the iron block can't go down, raise the iron block by 2m and put it down quickly, and use the gravity of the iron block to break the blockage or insufficient circulation area. Remember, the iron block must be tied well, and the end of nylon rope must be tied well, otherwise it will fall into the flue with the iron block and nylon rope during processing.

5. If the flue is unblocked through the above inspection, the barbecue fume still enters your house, indicating that the roof smoke exhaust pipe is short and the suction is not enough. You should ask the masons on the roof to build a flue with red bricks 2 to 4 meters high.

I hope it helps you.