How to Read pH Indicator Strips Correctly (Water,
Dip your strip into a glass of water (not your sampling container!) and move it back and forth for 30 seconds. Alternatively you can hold it under a stream of water for 10 seconds. The pads will change color to indicate Total Chlorine (white pad on end) and Free Chlorine (yellow pad). Hold your strip up to the chart to see your result.
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