rust scale in impeller

My pump is 16 years old. Had a problem with several maxy paw heads not rotating. Traced it back to the plugged impeller. I cleaned what I could, but in the casing are unreachable compartments. Is there anything available? A new pump would cost $650.

Thank you,
Walter

How about a pressure washer or maybe soak in CLR, and then pressure wash.

If your trying to clean an impeller, a coat hanger bent in a half circle works wonders.

I don't know what kind of pump this is, but $650.00 will buy one great pump.

What horsepower is your pump and what kind is it?