This phenomenon is normal, because the sediment deposition in the well is relatively balanced with the original pump, and the water pumped out is relatively clear when pumping. When changing the pump, the sediment is loose, the water quality is turbid, and the pump is a little bottomed out, which leads to turbidity, yellowing and turbidity. This phenomenon is easy to solve. Turn on the switch and let the pump run for a period of time to pump the water out of the well, and the water quality will be improved. If it is still yellow mud, it should be no problem to pump the water out the next day, and the water quality will be better. If not, take a few strokes and the problem will be solved! Drain the water and wash the well.