A contractor wants to backfill a new building drain before the required test and inspection. What is the proper sequence?
- ASkip testing if joints look clean
- BBackfill and rely on photographs only
- Test before approved backfill
- DTest only the fixtures after finishes
Why C is correct
Testing and inspection before concealment allow leaks, grade, joints, and materials to be evaluated and corrected. Photographs or a later fixture test do not provide equivalent access to buried work.