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English Instructor Manual (PDF) - Metric Version - National ...

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Chapter 8 – Chemical Testing<br />

Handbook: Pages 85 - 98<br />

Suggested Time:<br />

PowerPoint Slides:<br />

Materials:<br />

30 minutes<br />

Chapter 8 Slides<br />

Test kits, preferably that can test for free chlorine, total chlorine, pH,<br />

total alkalinity, calcium hardness, and cyanuric acid<br />

Water Testing video demo (from the <strong>Instructor</strong> DVD)<br />

Objectives: At the end of this lesson, the student will be able to:<br />

1. List the importance of accurate pool/spa water testing<br />

2. List the results of improper water testing<br />

3. Explain the methods used to test pool/spa water<br />

4. Explain the proper procedure for testing pool/spa water<br />

Leading Questions:<br />

Why is chemical testing important?<br />

Why is it important to have accurate water testing?<br />

How often should testing be done and why?<br />

What types of testing do you do at your pools?<br />

How is your testing recorded?<br />

Is there a regulatory agency that reviews your testing results?<br />

Key Points: Discuss the importance of accurate testing and consequences of improper testing.<br />

Emphasize that the results of the tests that are taken have a domino effect on everything else<br />

done from that point on with the water chemistry.<br />

Video Demo: Show the Water Testing video demo from the <strong>Instructor</strong> DVD.<br />

Key Points: Discuss the importance of accurate testing. This includes:<br />

Prevent disease outbreaks by maintaining proper disinfectant and chemical levels<br />

Prevent drowning due to cloudy water<br />

Maintain good water quality<br />

Reduce algae growth<br />

Regulation compliance<br />

Key Points: Discuss the effects of improper testing. These include:<br />

Inaccurate test results<br />

Miscalculation of chemicals needed to correct imbalances<br />

Potential hazards to swimmers<br />

Regulatory agency intervention<br />

False readings due to chemical interferences<br />

© 2014 <strong>National</strong> Swimming Pool Foundation® Page 65

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