What are the benefits of drainage on the same floor?

The advantage of drainage on the same floor is that the layout is flexible, and the layout of the bathroom can be freely arranged without restrictions; Do not waste materials, lay pipelines as needed, and do not have to bear the high cost and hidden dangers of transformation; Reduce elbows, water storage pipes and other pipe fittings, drainage is smoother, the blocking probability does not run through the floor, and the probability of leakage to the downstairs is reduced; The noise is greatly reduced, and the horizontal pipes draining at the same layer are buried in the filling layer, which plays a sound insulation role; Property ownership is clear, except for the public sewage riser, the horizontal pipe is located on this floor; Reduce the floor space and have no ceiling; Reduce the sanitary dead angle (using wall hanging system), which is convenient to clean and more sanitary.