I am on the 40th floor, and on the 41st floor, in order to move the toilet, the bathroom floor was d

Guess you want to slot, go to the bottom of the toilet and go through the horizontal pipe, and the downstairs should still be your own. This is not too much of a problem.

The floor slab is too thin, and it is recommended to raise the floor level of the toilet area to achieve a horizontal pipe. If the original leakage is not a large area, just use cement yellow sand and gravel to make up for it. If the area is very large, it is necessary to erect a formwork to support the steel bar and then pour the cement, and the ground, the load-bearing capacity is affected, and attention must be paid to.