A camera inspection shows a belly in a sanitary run before slab placement. What should happen?
Correct Answer
C) Correct bedding and grade before cover
A belly in a gravity sanitary run should be corrected before the pipe is covered or slab placement makes repair difficult.
Why This Is the Correct Answer
A belly in a gravity sanitary run should be corrected before the pipe is covered or slab placement makes repair difficult.
Why the Other Options Are Wrong
Option A: Accept because water may pass
The trap in A is Accept because water may pass. That selection is wrong because the choice would not get the project to Correct bedding and grade before cover, which is the Sanitary pipe belly correction result verified by the source; Pipe bellies are corrected before cover.
Option B: Make flush after occupancy the answer for sanitary pipe belly correction
Choice B gives Flush after occupancy. Its specific error: the option does not produce the required Sanitary pipe belly correction outcome, Correct bedding and grade before cover.
Option D: The site crew should pour slab first, leaving sanitary pipe belly correction unverified
In site construction, Pour slab first is the wrong selection for Sanitary pipe belly correction: it answers the Sanitary pipe belly correction prompt with the wrong practical move.
Memory Technique
Use the phrase "problem, control, result" for sanitary pipe belly correction; the result side is Correct bedding and grade before cover.
Reference Hint
Open Pipe and Excavation Contracting, 2011; use by topic index - gravity drainage slope / pipe fall to confirm that A belly in a gravity sanitary run should be corrected before the pipe is covered or slab placement makes repair difficult.
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