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

Safety concern when water levels are too high
Need for continuous monitoring of “runout” water levels
Key Points: Adding disinfectants to APFs (pp 19-22). Include information relative to:
Most common disinfectant used in APFs
Chlorine
Compounds that result from the addition of chlorine to water
Hypochlorous acid
Hypochlorite ion
Chemical feed rates associated with APFs
APF 160 to 227 kilos per day
1,800,000 litre wave pool up to 450 kilos per day
Need for a disinfectant residual in APF water
Need for properly sized chemical feed systems
APF typical feed rate is 450 kilos per day
Need for automatic feeder control systems
Disinfections feeder control
pH feeder controllers
Key Points: Chemical testing (p 23). Include information relative to:
Types of test methods
ORP
DPD
When to test
Before facility opens
Midday(if possible)
Proper sample gathering
More than one location
Start of ride
End of ride
Wave pools deep middle and shallow water
Proper test kit utilization
Present techniques shown in Pool & Spa Operator Handbook, Chemical Testing
chapter
Appendix 1 – Water Chemistry Guidelines
Proper record keeping for water tests
State and local codes
Industry recommendations
Key Points: Recreational Water Illnesses (pp 23-24). Include information relative to:
Cause of RWIs
Cryptosporidium
Giardia
E. Coli 0157:H7
Norovirus
Shigella
Prevention of RWIs
Proper disinfectant levels
Off deck change diaper change stations
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© 2014 National Swimming Pool Foundation®