Today I poured a glass of water that looked like this
Yuck. It seems to happen more often lately, so, fearing cholera or some extinct bug disease, I looked it up on the internet. It turns out that the cloudiness is air bubbles.
"Cloudy water, also known as white water, is caused by air bubbles in the water. It is completely harmless.
It usually happens when it is very cold outside because the solubility of air in water increases as water pressure increases and/or water temperature decreases.
Cold water holds more air than warm water.
In the winter, water travels from the reservoir which is very cold and warms up during its travel to your tap. The air that is present is no longer soluble, and comes out of solution."
I still don't want to drink it.