Chapter 2: Using the 5-Way Test Strip

It is important to carefully read the instructions on the test strip bottle for proper use. In order to consistently obtain accurate results, there are several tips that help the user. For example, the reason the instruction says to read the strip starting with chlorine (Cl) at the top is because the pH and hardness pads need a few extra seconds to fully develop (about 10 to 15). By the time the strip is removed from the water and the initial three test factors are carefully read, the colors for pH and hardness are ready for evaluation.

Note: a color that appears on the strip may be between two color chart values. If this happens, record the result as a number in between the values shown.

Note: the magenta (hot pink) values represent the bromine test results, and are found just below the free chlorine values printed in black. Below are explanations as to why some of the instructions and tips are important to follow.

Instruction:

1. Immerse strip. SWIRL 3 TIMES or DIP according to directions on bottle.

Why? Exposes each pad to the correct amount of pool/spa water.

2. Remove with pads face up.

Why? Hold strip level to avoid reactant from one pad running into another pad.

3. DO NOT SHAKE OFF EXCESS WATER. Read immediately Cl->TCl-> etc.

Why? This could shake off the colored reaction. Read the pads reactions in sequence to allow the proper reaction time for each pad.

Tips

Keep wet fingers out of the bottle. Strip pads will react if they get wet so shake out a strip and pick it up with dry fingers.

Close vial tightly after removing strip. To keep moisture out of bottle press down the center of the cap to seal it quickly after removing a strip.

Immerse strip to a depth of 12"-18". In pools, this assures a representative sample of the pool water and not just the surface where evaporation takes place. In spas, swirl with the jets not running.

Read in natural daylight. Sodium vapor light bulbs can make color matching difficult.

Store in a cool, dry place. Indoor is best, since extreme heat and moisture could reduce the shelf-life of the strips.

The PopTop lid

The unique PopTop vial comes with a molded desiccant sleeve insert. This eliminates the need for a desiccant pillow and provides more protection for strips from moisture intrusion. Do not remove the sleeve. A properly closed vial is 100% leak proof and airtight.

Simple Do’s and Don’ts

In addition to the important tips on the bottle here are some key DO’s and DON’Ts to remember.

DO’s

1. Use the test strip “on-site” and swirl in a one-foot circle.
2. Always read the result promptly after swirling and lifting it level from the water.
3. Always remove sunglasses since they can make color matching more difficult.

DONT'S

1. Never dip the strip next to a make-up water inlet, return line or a chemical feeder.
2. Never test the water prior to one complete filter cycle after a large amount of chemical has been added.
3. Never swirl a strip in spa water with the air jets running.