However, these two difficulties were not a problem for Zhao Hai. With bubbles around, Zhao Hai was not worried at all. Who could control water better than bubbles?
In addition to this, water refinement had another characteristic, which was that it was slow. The difference between water and fire was that this method was too slow. Fire could use fire to refine the metal or something, and then hammer it or other methods to remove the impurities.
