There are four reasons:
One: small pipes and many elbows;
Two: things like chopsticks fall into the pipe;
Three: lost cement or slag when decorating the house;
Four: if the pipeline is used for a long time, too much oil on the inner edge of the pipeline will often be blocked.
Small coup to dredge the kitchen sewer;
1, look for yourself first, but pay attention to PVC or cast iron. Buy a 2-meter pipe dredge at the stall, make several bends at the head 2 cm, put it in the outlet dredge while draining, put it in while shaking, and then put it in the inlet dredge while draining. Just repeat it several times! At the same time, it will be dredged every other week. If professionals come, you can use manual methods first, don't pour water, or enclose the pool to prevent water from splashing. Of course, other things should also be put away. Also, you have to ensure that it is removed in a short time, otherwise the smell is very strong.
2. Find an iron wire with a diameter of 0.5- 1 mm and a length of 3-4 meters, fold it in the middle, then twist it into a strand, then bend both ends in different directions at one end, then put this end into the sewer pipe, grab the other end and twist it while screwing it in. If you encounter resistance, you can't screw it in or stretch it in, so don't screw it out at this time.
3, the sewer is full of water, press it down with a cork, and then lift it hard, which will form a certain pressure and pumping force, which may wash away the blocked debris; But if the plug is too dead, I'm afraid it's just a serpentine tube. You can also use the wire mentioned above, but this is expensive and difficult to handle. You'd better find someone to clear it. There is another kind of stuff called pipeline dredge, which is sold in supermarkets. You can try it.
4. Put in jaundice, or add some irritating things like washing powder or salt, then cover it, and the sewer pipe will be connected in an instant!
5. Green method of dredging sewer: pour 1 cup of washing powder into the blocked sewer, and then pour 3 cups of hot water. If this doesn't clear the sewer, pour 1 cup of vinegar into it.
6. Log dredging method: We can find a log as thick as the sewer pipe, insert it into the pipe, and then put a certain amount of water in the pool to pump the log up and down quickly without interruption. Under the action of suction and pressure, the blocked dirt in the pipeline will be washed away.