CPI CPI Drain Cover & Entrapment Prevention 1 — Questions and Answers
Question 1: Which federal law mandates that all public pool and spa drain covers meet specific anti-entrapment standards?
- Clean Water Act
- Virginia Graeme Baker Pool and Spa Safety Act (VGB Act) (Correct answer)
- Safe Drinking Water Act
- OSHA Pool Safety Standard 1910.119
Correct answer: Virginia Graeme Baker Pool and Spa Safety Act (VGB Act)
The Virginia Graeme Baker (VGB) Pool and Spa Safety Act of 2007 requires anti-entrapment drain covers on all public pools and spas in the US.
Question 2: What organization publishes the ANSI/APSP-16 standard referenced in the VGB Act for suction outlet fittings?
- ASTM International
- ASME
- APSP (Association of Pool & Spa Professionals) (Correct answer)
- NFPA
Correct answer: APSP (Association of Pool & Spa Professionals)
APSP (now PHTA) publishes ANSI/APSP-16, which defines performance requirements for suction outlet fitting assemblies in pools and spas.
Question 3: What is the most effective engineering solution for preventing body entrapment at pool drain outlets?
- Installing a single large drain cover
- Using dual main drains separated by at least 3 feet (Correct answer)
- Placing the drain in the deep end only
- Covering the drain with a mesh screen
Correct answer: Using dual main drains separated by at least 3 feet
Dual main drains separated by at least 3 feet prevent full-body blockage of both drains simultaneously, reducing suction entrapment risk.
Question 4: How should a CPI inspector assess whether a drain cover is compliant with VGB Act requirements?
- Check whether the cover is white or gray
- Verify it bears a current ASME certification mark
- Confirm it has an ANSI/APSP-16 listing, shows no cracks, and is properly secured (Correct answer)
- Check that it is circular in shape
Correct answer: Confirm it has an ANSI/APSP-16 listing, shows no cracks, and is properly secured
Compliance requires verifying the ANSI/APSP-16 listing on the cover, inspecting for physical damage, and confirming it is securely fastened.
Question 5: What is the danger of a flat drain cover installed over a sump that is too deep for the cover's rated flow?
- The cover may become discolored
- Excessive suction can still create a hazardous entrapment force despite the cover (Correct answer)
- The pump may run dry
- The cover will float off
Correct answer: Excessive suction can still create a hazardous entrapment force despite the cover
If pump flow exceeds the drain cover's rated maximum, hazardous suction forces can develop even through an intact cover.
Question 6: What does the term 'hair entrapment' refer to in pool safety?
- Hair getting caught in a pool skimmer basket
- Long hair being sucked into a drain outlet and trapping a bather underwater (Correct answer)
- Hair clogging a filter cartridge
- Hair discoloration from chlorine exposure
Correct answer: Long hair being sucked into a drain outlet and trapping a bather underwater
Hair entrapment occurs when a bather's hair is pulled into a drain opening and tangled, preventing the person from surfacing.
CPI CPI Drain Cover & Entrapment Prevention 1
Which federal law mandates that all public pool and spa drain covers meet specific anti-entrapment standards?