CPI Drain Cover & Entrapment Prevention Flashcards
6 cards from real CPI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPI Drain Cover & Entrapment Prevention flashcards as text
What is the significance of the 'grate open area' specification on a VGB-compliant drain cover?
Answer: It defines the flow capacity the cover can pass without creating dangerous suction
Grate open area determines how much flow the cover can pass at safe suction levels; the pump flow must not exceed this rated capacity.
Which of the following pool configurations BEST reduces the risk of suction entrapment when a SVRS is not installed?
Answer: Two main drains separated by at least 3 feet with compliant covers
Dual drains spaced at least 3 feet apart ensure that if one is blocked, the other continues to allow flow, preventing dangerous suction buildup.
What does the VGB Act require for newly constructed public swimming pools regarding suction outlet protection?
Answer: At least one of: unblockable drain, dual drains, SVRS, or other approved device
The VGB Act allows multiple compliance paths: unblockable drains, dual-drain systems, SVRS, or other approved anti-entrapment technology.
What action should a CPI inspector take if a pool's main drain cover cannot be identified as a listed ANSI/APSP-16 product?
Answer: Note it as non-compliant and recommend replacement with a listed cover
Without a verified ANSI/APSP-16 listing, the drain cover cannot be confirmed as compliant and must be reported as a deficiency requiring replacement.
Under the VGB Act, who bears responsibility for ensuring that compliant drain covers are installed in a public pool?
Answer: The pool owner or operator
The VGB Act places legal responsibility on pool owners and operators to ensure compliant drain covers are installed and maintained.
What is the correct procedure when a CPI inspector finds that the pump flow rate exceeds the maximum rated flow of the installed drain cover?
Answer: Flag it as a serious safety deficiency requiring flow reduction or cover replacement
Exceeding the drain cover's rated flow creates dangerous suction forces that can cause entrapment even with a physically intact cover, requiring immediate corrective action.