Here’s a fun experiment you can do right now: fill a clear glass with cloudy tap water and set it on the counter. If the cloudiness clears from the bottom up within a minute or two, it’s definitely just air.
If it stays cloudy for longer, you might have a different issue — but that’s rare. For the air-bubble variety, you can even speed up the process by stirring the water with a spoon. Poof — clear as crystal.
Pop culture fans will love this: the same principle is why fish tank water sometimes looks cloudy after you change the filter. It’s just air integration, not an alien invasion.
