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Ann-Elise K., Courtney S., Kayla P.
English 3050
Instructions Project
How to Test pH and Chlorine Levels in an 8 ft. Deep Legacy Brand
Pool using the Kokido 3-Way Pool & Spa Test Kit
These instructions guide individuals who own pools to independently test their pool
water for dangerous concentrations of chemicals. These instructions provide the
estimated time, list the necessary equipment, and guide the reader in preparing the
Kokido Test Kit, testing the pH, Chlorine, and Bromine levels, reading and interpreting
results, and storing the Kokido Test Kit.
*Warning: Orthotolidine is a cancer-forming toxin. Avoid skin contact and handle
with extreme care. In case of contact with skin or eyes, immediately wash
affected area with plenty of water and seek medical advice.
Estimated Time:
10 minutes
Equipment:
Legacy Brand Pool (8 ft depth, 12,000 gallons)
Kokido 3-Way Pool and Spa Test Kit
Rubber Gloves (optional)
Preparing the Kokido Test Kit:
1. Wash empty test tube container well with soap and warm water.
2. Rinse thoroughly.
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3. Check the pool filter for white, round “shock tablets”.
 Caution: If tablets are present, wait for them to dissolve before testing.
NEVER expose your skin to shock tablets, as this may result in a chemical
burn.
Testing the pH, Chlorine, and Bromine Levels:
1. Kneel at the deep end of the pool. (All testing must be done on the deep end.)
2. Hold the test tube container upside-down.
3. Dip the container upside-down into the pool roughly 18 inches below the water
surface.
4. Flip the container up, allowing it to fill with water.
5. Raise it out of the water.
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6. Pour out a fraction of the collected water, so that the water is filled only to the
indicator line on the test tubes.

The indicator line is the clear marking on the top half of the tubes.
7. Put on rubber gloves. (Optional)
8. Dispense 6 drops of Phenol Red into the left-hand side test tube container
(marked pH”).
 If the chemical is accidentally dispensed into the incorrect test tube, pour
out the contents, wash out tube, and repeat steps 1-8.
*Warning: Orthotolidine is a cancerous toxin. Handle with caution.
9. Dispense 6 drops of Orthotolidine (the bottle labeled OTO) into the right-hand
side test tube container.
 If the chemical is accidentally dispensed into the incorrect test tube, pour
out the contents, wash out tube, and repeat steps 1-8.
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10. Put the red cap over the pH test tube, and then the yellow cap over the chlorine
test tube.
11. Shake the tubes for a few seconds.
12. Wait 2-3 minutes for dye to disperse. (The color will appear even throughout the
sample.)
Reading and Interpreting Results
1. Hold the tube up to a light (sun, if day).
2. Match the color of the sample in the left container to the corresponding color in
the ‘pH’ column.
 The ideal pH level is between 7.2 and 7.6
3. Match the color of the sample in the right container to the corresponding color in
the ‘Cl’ column.
 The ideal Chlorine Level is between 2 and 3.
4. Match the color of the sample in the right container to the corresponding color in
the ‘Br’ column.
 The ideal Bromine level is between 2 and 4.
Storing the Kokido Test Kit
1. Rinse test tubes in the sink.
2. Wash the tester with soap and warm water.
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3. Rinse thoroughly.
4. Dry the test tubes.
5. Store tester and chemicals in a cool, dry place.