The water is sanitized so that it can be consumed by people and remains hygienic. When the water gets dirty it has to be cleaned as the consumption of dirty water can lead to many diseases such as Hepatitis.
Moreover, if organic matter is present in a stagnant water this can cause algae to from in the water which again is not suitable for drinking
Answer:
It's important because dirty water or anything that isn't cleansed can cause disease and if people continue to use it it will cause an epidemic.
Explanation:
