Cause analysis: It may be that the height of the water seal of the floor drain is not enough, and it is easy to dry up, causing the odor in the drainage pipe to flood into the room.
Solution: First, there may not be a return water bend in the floor drain, just add one; second, replace it with a floor drain of the same brand and specification. But during construction, be careful not to damage the waterproof layer. In addition, it should be reminded that during use, the water seal should be prevented from drying up, and water should be injected regularly. If you leave it for a long time, it is best to seal the floor drain with a cover.
Cause analysis: It may be that the water passing section of the floor drain is not smooth enough, and the sewage cannot pass through quickly, or the internal structure of the floor drain is uneven, and dirt such as hair and fibers are caught.
Solution: The height of the floor drain is determined by the piping method of the drainage system. Therefore, the height of the selected floor drain is preferably within 200mm and 120mm respectively, and must drain sideways. The commonly used methods of concealed installation are two kinds: the partial subsidence of the structural floor of the toilet and the layout of the toilet as a cushion. In order to meet the clean height and ergonomic requirements of the bathroom, the sinking headroom of the former is 300mm, and the cushion height of the latter is up to 170mm.
Solution: Open the floor tiles around the floor drain, dig out the surrounding cement to a depth of 3cm, and then seal it with "Die Leaking Spirit". After 1 hour, do a closed water test to see if it still seeps.