Plumber Red Seal · Question
What type of protection is required for a potable water line connecting directly to an irrigation system?
Irrigation systems pose a significant cross-connection hazard due to potential for back-siphonage or back-pressure of non-potable water into the potable supply.
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Question: What type of protection is required for a potable water line connecting directly to an irrigation system?
Answer options:
- A backwater valve
- An air admittance valve ✅ A double check valve assembly or reduced pressure principle backflow preventer
- A pressure reducing valve
Correct answer: A double check valve assembly or reduced pressure principle backflow preventer
Explanation: Irrigation systems pose a significant cross-connection hazard due to potential for back-siphonage or back-pressure of non-potable water into the potable supply. A double check valve assembly or reduced pressure principle backflow preventer is required.
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