Pool Test Strips Color Chart. Hold the bottle vertically and dispense drops into water. Collect a water sample approximately 18 inches below the water surface or up to your elbow.
Collect a water sample approximately 18 inches below the water surface or up to your elbow. Hold the bottle vertically and dispense drops into water.
2 Pool test strips color chart
Collect A Water Sample Approximately 18 Inches Below The Water Surface Or Up To Your Elbow.
Hold the bottle vertically and dispense drops into water.