1) The house is in good condition. How can it be good to dig a well behind it?
2) The dragon spirit came home ahead, but some of them were strong and wanted to move forward. Wouldn't it be nice to dig a well, stop the dragon soul and let him stay in his own house? If there are other family members in front who use Long Mai, don't drill wells, save some virtue!
3) Where is better, you need to have an accurate sitting direction.