Plumber Red Seal · Question
What type of backflow prevention device is required for a commercial boiler system that uses chemical additives?
A boiler system with chemical additives is considered a high hazard. An RP device is required for high-hazard cross-connections as it provides the highest level
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Question: What type of backflow prevention device is required for a commercial boiler system that uses chemical additives?
Answer options:
- A dual check valve (DuC)
- A double check valve assembly (DCVA)
- A pressure vacuum breaker (PVB) ✅ A reduced pressure principle backflow preventer (RP)
Correct answer: A reduced pressure principle backflow preventer (RP)
Explanation: A boiler system with chemical additives is considered a high hazard. An RP device is required for high-hazard cross-connections as it provides the highest level of protection against both back-siphonage and back-pressure.
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