A plumbing rough-in inspection checks fixture trap seals. What common water-seal range is used for fixture traps?
Correct Answer
D) 2 to 4 in.
Fixture trap seals are commonly required to be at least 2 in. and not more than 4 in. Other choices are too shallow to protect the trap seal or too deep for the standard range.
Why This Is the Correct Answer
Fixture trap seals are commonly required to be at least 2 in. and not more than 4 in. Other choices are too shallow to protect the trap seal or too deep for the standard range.
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