OK - I know something has to be wrong here....
This is the 3rd post in my ongoing saga... new 1hp pump motor (century centurion 1081) installed today with new impeller and diffuser recommended by parts guy (old motor was an oversized 2hp motor).
When I flipped it on, it made a horrible squealing like the pump was binding. Much like a reboot, I shut it off and back on and the squeal was gone and it ran quietly but it didn't seem to be drawing water at all. I opened the filter basket and smoke poured out.
The copper "tubing" on the interior of the diffuser had chewed away huge chunks of the impeller.....
I'm assuming this is not normal - that they wouldn't have to grind down to a fit.
Any advice? Impeller and diffuser are mis-sized?