Plumber Red Seal · Question
Which of the following scenarios represents the highest degree of hazard requiring a Reduced Pressure Principle Backflow Assembly (RPBA)?
A direct connection to a chemical dispenser presents a severe health hazard due to the potential for toxic chemicals to be backsiphoned into the potable water s
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Question: Which of the following scenarios represents the highest degree of hazard requiring a Reduced Pressure Principle Backflow Assembly (RPBA)?
Answer options:
- A fire sprinkler system with no chemical additives.
- A residential irrigation system connected to a potable water supply.
- A boiler system containing only water and approved inhibitors. ✅ The make-up water line to a commercial chemical soap dispenser.
Correct answer: The make-up water line to a commercial chemical soap dispenser.
Explanation: A direct connection to a chemical dispenser presents a severe health hazard due to the potential for toxic chemicals to be backsiphoned into the potable water supply, necessitating the highest level of protection, which is an RPBA.
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