The sewer in the sink is blocked. How to clear it?

The steps of unblocking the sink are as follows:

1, untie the backwater bay, and hook out impurities such as hair blocking the water pipe with iron wire.

2. Just use old chopsticks to pass through, clean the clothes rack and rinse the pipe with water.

3, soda vinegar dredging method: first pour half a cup of cooked baking soda powder into the sewer, and then pour half a cup of vinegar. After the soda reacts with the acid in the vinegar, the sticky things in the pipeline can be removed.

4. Log dredging method: first, insert a log with a diameter close to the drain in the water pipe, put a certain amount of water in the pool, and twitch the log up and down quickly without interruption. Under the action of suction and pressure, the dirt in the pipeline will be washed away.

5, water pump dredging method: when the kitchen sewer is blocked, you can insert the hose of the water pump into the sewer, and then put a small amount of water, constantly pumping air into it, the pipeline can be dredged.

6. Hydraulic dredging method: Take a plastic pipe (or rubber pipe) with a diameter of 1mm and a length of 1m, one end of which is tightly sleeved on the faucet, and the other end is inserted into the blockage in the pool. Wrap a cloth around the rubber pipe to block the drain of the pool, open the faucet and screw it to the maximum so that the water pressure is enough to wash away the blockage.

7. Find professional pipeline dredging personnel to repair.