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    Rough sounding pump, burn smell, cavitation/air in lines, impeller/diff clear, leak?

    I have a Hayward Super Pump that's maybe 5-7 years old. It didn't sound so bad last year, but after this really cold winter (which damaged various pipes around my house), it sounds rough now and has small amounts of air trickling in the return pipes of the pool since opening it (as well as...