Plumber Red Seal · Question
When installing a gas water heater, what is the primary purpose of the sediment trap (drip leg)?
A sediment trap, also known as a drip leg, is installed just before the appliance's gas connection to trap any sediment, scale, or moisture. This prevents debri
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Question: When installing a gas water heater, what is the primary purpose of the sediment trap (drip leg)?
Answer options:
- To prevent gas leaks at the appliance
- To regulate gas pressure to the burner ✅ To collect moisture and foreign particles from the gas line
- To provide an access point for testing gas pressure
Correct answer: To collect moisture and foreign particles from the gas line
Explanation: A sediment trap, also known as a drip leg, is installed just before the appliance's gas connection to trap any sediment, scale, or moisture. This prevents debris from entering and damaging the appliance's sensitive gas controls.
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