Drinking a glass of water can be enriching and refreshing. But sometimes water turns cloudy when you pour it in the glass and clears up in few minutes. It happens due to multiple reasons, here are few.
1) Due to a rupture in the plumbing, the air becomes pressurized. This leads to the formation of many micro bubbles which makes the water appear cloudy.
2) Sometimes tiny particles from rocks and stone, as well as sand and dirt can get mixed with your water supply. Again, these are generally harmless.
3) If an adjacent pipe carries gas leaks into your water pipe, it generates pressure. Due to this, pressure bubbles are formed which results in the change in water colour.