Pure Water Indicator

Pure Water Indicator Do you have a specific indicator in mind? Yes ,a paper or pad can be used with test components so that drops of contaminated water can be poured on it which will change the colour of the paper or pad that will indicate presence of impurities in the water. By changing the colour of the paper or pad means that there are element of bacteria presence and chemical reaction of alum/silver/salt on the paper ...more »

Submitted by (@omatseye.clarke)


35 votes