找一个打气筒,用废布紧紧缠在皮管上,其厚度为刚好能塞入下水管道口,然后用力压入管口,用水打湿以防透气。开始打气后,随着管内空气压力的不断增大,管内堵塞物开始移动。继之,可以听到“咕咚、咕咚”的声音。当你感到打气不费力 Find a pump, tightly wrapped with waste cloth on the skin, and its thickness just into the sewer pipe mouth, and then forced into the nozzle, wet with water to prevent air permeability. Began to cheer, with the tube of air pressure continues to increase, the pipe blockage began to move. Then, you can hear the sound of “Gudong, Gudong”. When you feel cheer effortlessly