Air
In some cases, the air is also a reason. When extra air is trapped or moves through the water, it gives a milky white appearance. It is common in places where water is forced with excess pressure, especially in hilly areas.
Freezing
Freezing causes dissolved minerals to separate from water. These small precipitates turn into solids and mix with supply water. The process is in places where there is extreme cold. The upper layer of water freezes, and the water below has these white deposits.
How To Test?
The best way to check the water quality is with the help of vinegar. First, place some samples of water in a cup of vinegar. If the white deposits are due to hard water, vinegar will dissolve the scales. However, in case the white flakes are plastic or any other material, they will not dissolve.
Prevention
White flakes do not always mean harmful impurities. The best remedy is to keep your filtering plant and plumbing sections clean. Remove lime scales regularly with descaling powder or vinegar. You should also investigate the quality of water by soap test. You can also check the smell, taste, and odor of the water for any harmful chemicals.
If the water is milky with bubbles, allow it to settle for a few minutes. Now inspect if you still find scales floating, get your water sample tested, or lodge a complaint with the water pumping and purification department. You should also check with your neighbors if they are facing a similar problem.
Conclusion
White flakes in water do not always indicate harmful chemicals. In most cases, these flakes are due to hard water, which is not a bad thing. Moreover, some of these minerals are good for health. Still, in case of doubt, it is always better to investigate.