There is a pit in the northwest, how to solve Feng Shui

In Feng Shui, the north, northeast, and northwest are collectively called the Xuanwu Fang. Xuanwu governs nobles, patrons, elders, and health. If there are holes or holes in these directions, bad things will happen in these aspects. In the Bagua, the northwest is also called Qian. The Qian hexagram represents the father and the male master, as well as career and official position. The Qian position should be full, complete and square, and any pitfalls are definitely bad luck. But if the hole is small, don't worry too much, just fill it up. If it is too big to fill up, you can place a pair of consecrated copper puppies on an auspicious day to resolve the problem. (Guangzhou Yipin Feng Shui Master He Shengbao provides a free topic with one answer a day)