My house has the same black coating on the outside of the concrete foundation. I assumed (for better or worse) that the coating was a vapor barrier and I put up a typical stud and fiberglass insulation and drywall wall against the foundation with no additional vapor barrier.
The inspector saw the lack of a vapor barrier on the inside and gave it a passing grade.
I just hope that any moisture that got through the drywall and insulation and condensed against or inside the concrete in winter will evaporate in the summer.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.
But AllanJ, the inspector could have seen the black coating outside, noted that it was a waterproofing membrane, and then saw your drywall on the inside and noted that that was a vapour retarder, so he passed it, no?
What do you assume now about your black stuff?
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