I've broken two expensive impellers trying to put a new one in my Mag 24 pump. It SEEMS like a monkey could do this. PROBLEM is the STRONG magnetic field of the pump housing SUCKS the impeller to it with SUCH force that it slams the impeller into the hole crooked. You HAVE to get that VERY fragile bottom ceramic shaft into the very small hole at bottom of pump cavity and the strong magnetic field sucking in the new impeller makes that VERY difficult to do. A couple trys off center and the bottom ceramic shaft chips and cracks, then breaks.
Has ANYONE done this and know the way It's SUPPOSED to be done?? If so, PLEASE help as I have my third impeller on the way and I don't want to break another one.
I got the last one in, I THOUGHT. I tested the pump and it worked fine. Then I hooked it up a half hour later and nothing. So I unhooked it, removed cover, and sure enough the bottom shaft had busted off so I must have weakened or cracked it when I installed the impeller