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    Vacuum breaker sucking air after new pump install. Do I need a stronger pump?

    Hi All, I recently installed a 1.5hp Hayward SP2303VSP variable speed pump to replace my old Pentair WFE-6 1.5hp single speed pool pump. I didn't realize it at the time but while the HP rating is similar, the flow curve of the old pump shows that it was a much stronger pump. After installation...