Well, I took the item apart (for the most part)... it has a piece of plastic tubing about 2" long stuck in the impeller, along with some of those air soft bb's.

How do I remove the impeller from the motor/shaft? I removed the reverse threaded screw without any problems, but the impeller, back of the housing (where the motor bolts too) won't come off.

Do I just need to gradually pry it off? Is there a seal behind this where it may be leaking?

Thanks.