Originally Posted by WalterAtMarchPump
That may only be giving you that impression depending on how many poles ther magnets have compared to ours. One more or less and the poles dont line up correctly and will slip very easily due to not having the proper field strength to stay coupled.
I guess so because Mike at chugger said the problem was with the magnets when I emailed him.
I will back up the props on his customer service. Almost immediate reply to emails and is sending me new pumps with prepaid return for the other 2. Can't ask for more than that.