The floor of the bathroom is higher than the floor of other rooms, but the water does not flow out,

It's not a question of whether it can be, but it's generally high, and the toilet will be changed to drain or something, and it will naturally be improved, and it will be not high according to the need, and it is the norm to be high.

It must be waterproofed first, and then filled with concrete, in fact, it is better to find a professional to do it.

As long as you don't drain the water from the bathroom to other rooms. >>>More

It's nothing, don't pursue the bathroom floor as high as the outside, it's meaningless, it's not a level, it's not the same thing, there's no need to pursue a level.

1. Put coarse salt in the bathroom, and the coarse salt should not touch the water and need to be exposed to the air. Salt is used to absorb water vapor and dirty gas in the bathroom, and coarse salt can ward off evil spirits. >>>More