English Instructor Manual (PDF) - Metric Version - National ...
English Instructor Manual (PDF) - Metric Version - National ...
English Instructor Manual (PDF) - Metric Version - National ...
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Chapter 2 – Water Quality<br />
Handbook: Pages 17-32<br />
Suggested Time:<br />
PowerPoint Slides:<br />
Materials:<br />
40 minutes<br />
APF Chapter 2 Slides<br />
Water Chemistry Guidelines<br />
(Appendix 1 from Aquatic Play Feature Handbook)<br />
Fecal Accident Response Recommendations<br />
(Appendix 6 from Aquatic Play Feature Handbook)<br />
Objectives: At the end of this chapter the student will be able to:<br />
1. Explain the water quality problems that make an aquatic play feature (APF) different<br />
from a traditional swimming pool<br />
2. Explain the importance of maintaining proper water levels in all APFs<br />
3. Explain how chemicals are added to APFs<br />
4. Explain why automatic chemical control systems are preferred in APFs<br />
5. List the recreational water illnesses that can be associated with APFs<br />
6. Compare the turnover rate associated with the various APF pools<br />
7. Explain the air quality issues associated with indoor APFs<br />
8. Explain why chemical exposure accidents are more of a problem with APFs<br />
9. List the alternative chemical treatment methods that can be utilized with APFs<br />
Leading Questions:<br />
What makes chemical dosing a problem with APFs?<br />
Why are water level and disinfection level harder to maintain in APFs?<br />
What factors contribute to rapidly changing APF water?<br />
Key Points: APF makeup water (p 18). Include information relative to:<br />
How water is lost in an APF<br />
Splash out<br />
Carry out<br />
Evaporation<br />
How the composition of potable makeup water might infl uence water balance<br />
pH<br />
Alkalinity<br />
Calcium Hardness<br />
Chloramine concentration in makeup water<br />
Pretreatment of makeup water<br />
Key Points: Proper water levels in APF (pp 18-19). Include information relative to:<br />
Cause of water loss in APFs<br />
Areas of greatest water loss<br />
Dangers of low water levels in speed slides<br />
© 2014 <strong>National</strong> Swimming Pool Foundation® Page 113