The reasons why the well cannot be backfilled are as follows:
According to geomantic omen, the well is dominated by yin, and the Yin Qi is heavier, which leads to bad luck, decreased fortune and exposed fortune, which makes people prone to mental illness or accidents, especially in the East.
The reason is that the east is Qinglong, which has always been regarded as auspicious and belongs to the birthplace. It is conceivable that there will be consequences here. However, if you make up hastily, you still haven't completely solved the fundamental problem, that is, the aftermath, so as to solve the worries.
Good luck and good health.