When the weather gets cold my tap water takes on a milky appearance. Why?
That milky color is really air bubbles. When the outside temperature drops, our pipes get cold and so does your drinking water. Bring that cold water into a warm home, and oxygen gas is released into the water as tiny bubbles. Fill a glass with water and let it stand for a few seconds. If the water clears from the bottom toward the top, the milky color is just the oxygen bubbles rising.