What are the feng shui taboos for burying people in the bathroom?

The drain pipe of the bathroom should not pass through the underground or gate of the house, because the sewage pipe should never pass through the living room and it is forbidden to leave the house. It is more violent to go through the door, but it should be buried outside the building. If the septic tank in the toilet can be more than three feet away from the house, it can alleviate the evil intentions.