Self, next time you replace a water pump, be SURE to pressurize the system with the tester before you presume the new pump is bad!

Found four hose clamps just loose enough to seep leakage; one bad enough to make it leak as bad as it was; and ALL of them running around to where the only visible dripage was at the harmonic balancer ...

So now I have to say the ACDelco Water Pump is a good one and not a DOA.

RwP