According to the legend, Lu Yu, named as Tea Saint, came to Huqiu in Zhen Yuan Period, Tang Dynasty (618?907), digging a well here and taking the water in this well as standard. He wrote a book Tea after comparing different waters in separate places. Because the water is clear and sweet, the well was named by Lu as “Third Fount”. The walls of fount are in ochre with nature vein, as beautiful as iron flowers. So Su Dongpo, famous poet in the Song Dynasty ((420?479) also named it Iron Flower Wall.