How to Purify Cloudy Water Boiling is perhaps the safest way to purify the cloudy water. You will need a boiling pot, fire, salt, a coffee filter or cloth, charcoal, and cotton. First, filter the cloudy water with a cotton filter or folded cloth. Then, boil the filtered water. Add a small amount of salt to improve the taste of the water as it is boiling. If you are above 2000 feet altitude, boil for three minutes. Next, let the water cool. Meanwhile, make a cotton and charcoal filter by crushing the charcoal and putting it in the cotton as trap. This will remove impurities and still some bad taste from the boiled water. Finally, filter the boiled water through the cotton trap. Guide Questions: 1. What are the other types of text? 2. What is the difference between enumeration text and time order text?​