A toilet door has a men s and women s toilet written on it, only urinating is allowed, and an idiom

Porous. 11111111111111111111111

If you build your own house, you can do this;

If you are buying a commercial house, you can't do this, because the sewage pipe has to be re-arranged, and it is under the ceiling downstairs, and it needs to be drilled and a very thick horizontal pipe, do you say that the people downstairs will agree? >>>More

If the home is a shared bathroom, the door of the bathroom must be equipped with a door lock with a lock, so that the toilet can be closed with a lock, so that people outside can not open the bathroom door.

With glue for exclusive use of PVC. It's best to make a material that is the same as the riser. Glued to that hole. Do not use glass glue. Toilet effluent is corrosive. Glass glue is not good.

Nothing is particular. If you believe it, ask Mr. Feng Shui to show you.