I am also replacing my Hayward pump with 1 1/2" in and out with a Harris pump which is much less expensive (probably not as good a quality but I only want another 3-4 years with it). The Harris has 2" in and out. With a simple Yes or No, would there be any problems just stepping it down right at the pump from the 2" on the pump to the 1 1/2" lines?
Thanks
Mike