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    Pump humming; not turning

    I have a 3 year-old Hayward Powerflow-max SP-1510-Z1-XEHC pump on my 18 foot above ground pool and a DE filter. I replaced a hose today and had the skimmer and discharge plugs in. I had everything hooked back up and was ready to go. Had my wife turn on the pump. The pump sounded like it needed...