Home for the new washbasin clamshell type of water pipes and pipes, pipe is smooth, that is, slow water.
It should be a place where the water outlet and pipe joints, the tube down a little 1 cm try it, it should be good
Method one: may be slightly blocked pipe, change the next water pipe, there may be anti-water bar, check whether the total waterway block, if the plug can be cleared.
Method 2: should be the sewer and pipe where the problem, the tube down a little 1 cm try
