I have a Pentair 011511 that looks like this.
The pump is making very bad noises like a bearing is going. I am trying to take it apart to see what the problem is. I removed the motor and diffuser from the pump housing. How do you remove the impeller, does it take a special puller? I took the screw out of the center and gave the mounting plate a few tugs but didn't want to get too aggressive with it.