"This isn't right. I've always drawn up cold water before; it can't suddenly become hot!" Chen Xin still found it very strange. He shook his head and said, "If I'd discovered earlier that there were hot springs below, there would have been no need to bother with a geothermal heat pump. I could have just drawn up hot water directly for use, no need to mess with shallow geothermal heating."
Qin Lan heard what Chen Xin said and nodded in agreement.
Though she agreed with Chen Xin, Qin Lan was still puzzled about the current situation. Why did the cold water suddenly turn into hot water?
"So, Xin, do you know what could cause the underground water temperature to change suddenly?" Qin Lan thought it over and still felt that the temperature change was due to something happening with the underground water.
