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

Key Points: Explain the various types of fi lters found at pools/spas. Include the following:
What is meant by fi lter media rate
Sand fi lters and their fi lter media rate
Diatomaceous Earth fi lter and its fi lter media rate
Cartridge fi lter and its fi lter media rate
Key Points: Discuss the Virginia Graeme Baker Pool and Spa Safety Act. Include the following:
When the act became effective
The purpose of the act
The requirements to be compliant with the act
Single main drain other than an unblockable
Multiple drains less than three feet apart
A review of the VGB Inspection Compliance form on pp 30-31.
Key Points: Explain the fi ve forms of entrapment. Include the following:
Body entrapment
Hair entrapment
Limb entrapment
Mechanical entrapment
Evisceration/disembowelment
Key Points: Explain the relationship between turnover rate and fl ow rate. Include the following:
Brief discussion of turnover rate and fl ow rate
How to determine fl ow rate
Flow meters
Total dynamic head – how determined and pump curve relationship
Key Points: Provide an explanation of unblockable drains and sumps. Include a discussion of the
following:
Requirements to be considered an unblockable drain
Sumps requirements as specifi ed by ANSI/APSP - 16
Test requirements
Suction fi tting labeling requirements
Key Points: Discuss the enforcement of the P&SS Act. Include the following:
Where a full copy of the act can be obtained
CPSC and State Attorneys General enforcement power
Final Questions: Ask the participants if they have any questions pertaining to the lesson they
have just completed. If there are participants who are still having trouble with the concepts of this
lesson, offer additional help during a break or after class.
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