How to arrange Feng Shui arrangements for houses with running water in the four corners?

The four corners represent different characters in the family, the male master in the northwest, the eldest daughter in the southeast, the mistress in the southwest, and the younger boy in the northeast. This should be viewed with reference to the five elements of these four people. Tap water pipes belong to metal, and metal generates water. If any of these four people belongs to fire, it will be a violation.