Instructions: 1. Fill a small container with approx. 2.5 cm of pool / spa water. 2. Insert the lower end of the strip into the water sample. For the most accurate result, keep the top half of the strip completely dry. When the yellow band darkens, typically within 3 to 4 minutes, remove the strip from the sample and determine where the highest white dot (white peak value) appears within the number scale of the test strip. Compare the value with the diagram on the bottle.
Note: Each bottle of AquaChek White has its own unique chart that specifically matches the test strips contained in each bottle. Important: Keep the lid tightly closed when the product is not in use. Store at room temperature. Use before the expiration date at the top of the lid.