First, Feng Shui said that the house should be low before and high after, not high before and low after: "Ten Books of Yangzhai" said: "There is no portal after the high before. The front is high and the back is low, and there are many cows and horses. " Feng Shui pays attention to "before Suzaku, after Xuanwu". There are ponds (Suzaku) and hills (Xuanwu) in front of the house, which is good, that is to say, the front is low and the back is high. There is a pit in the back, or the back is generally low, which is not good from the perspective of geomantic omen.
Secondly, the mirror of eight houses specifically explains the influence of the pit around the house on the owner: "Kun (southwest) left the pit (due south), damaging his wife ... opened a pit on the ridge (due north), and his child died young; For example, in the location of Kaigen (Northeast), dysentery is rampant (suffering from dysentery and infectious diseases). " The pit of your house is in the root or the ridge.
Third, cracks: fill the pit, if the terrain behind is low, pad it higher.
Fourth, in addition, does your door lead directly to the road? That's a gun. A straight shot must be solved. If it is not convenient to set up a screen wall, set up a Taishan stone.
5. Nothing else.