Hth Test Strip Chart. Dip test strip into water. Collect a water sample approximately 18 inches below the water surface or up to your elbow.
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Collect a water sample approximately 18 inches below the water surface or up to your elbow. Dip test strip into water. Dip the test strip into the pool water 18 inches below the surface of the water (approximately deep enough so the water reaches your elbow).
1 Hth test strip chart
Collect A Water Sample Approximately 18 Inches Below The Water Surface Or Up To Your Elbow.
Dip the test strip into the pool water 18 inches below the surface of the water (approximately deep enough so the water reaches your elbow). Hold the bottle vertically and dispense drops into water sample.
Dip Test Strip Into Water.
Do not dispose of test solutions in swimming pools or spas.
