Hi. My impeller needs to be replaced. When I send for one, they send me one with a rounded key-way. It won't fit. I read that someone else had that problem and that it may be a CG beefed up lower end. Who could I talke to, to get the right impeller? Do I have to change the lower end to get the right impeller? Any help would be appreciated! <br /><br /> -Capt****-