Does the drainage on the same floor of the hotel need to be waterproof?

Advantages of drainage on the same floor:

Flexible layout, free layout of bathrooms, unrestricted;

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, and the blocking probability is reduced;

Do not run through the floor, reducing the probability of leakage to the downstairs;

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.