@amenonsen the contractor will be forced to come back in and correct. But I believe they should be banned.What would happen if that was a pump for the concentrated hydrochloric acid. Wrong motor rotation would just damage the impeller, locking up the pump and the technician is not going to get far. But when a pump is installed backwards, what could happen...oh we just pumped the process liquid into the massive hydrochloric acid silo. Not everyone has seen what hydrochloric acid can do when it gets into the wrong places. I have. You'll never forget that it creates lots of hydrogen gas and that lovely smell of sulphur. What happens to heated hydrogen gas? Yep. Boom. Lots of big booms. All because someone did not label a bucket of liquid, a very serious violation. The evening local news media would go national, perhaps worldwide.