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    Replace 2-Speed Motor with Variable Speed on Pentair WF-28 Pump

    I have a Pentair WF-28 pump with a 2-speed Century B2983 motor (10.0 Amps, 1.5HPx1.6SF = 2.2 total HP) and Intermatic Model P1353ME 3-switch controller. The original motor was single speed (11.0 Amps, 2HPx1.1 SF = 2.2 total HP). I assume the impeller is part no. 073129 for 2.2 HP. The pump is...