Boiled water, Yuyang water? Is cold water called yin water in feng shui?

"Now, how to make French water. There is a kind of yin-yang water. In ancient times, when it rained, people took water from the sky that had not yet reached the ground, and took it as yin water with utensils, or took clean water from rivers as yin water. Yang water refers to the water boiled by fire, and the two waters are mixed half by half. At home, it is advisable to take the water filtered by the water purifier as yin, and the boiled water as yang. If you use this kind of water to recite the Buddha's mantra, the effect is ideal, but the most important thing is to be sincere and respectful. ?" ~ Master Chang Guanyin