Hi everyone...we currently have a Hayward 1.5 HP (not sure of model), and the bearings have gone bad. Prior to this, the pump was always a little too loud for our liking, so now that it's time to replace it I'm wondering if anyone has any suggestions. We have an inground pool with a sand filter, and for whatever reason my husband prefers to stick with a single speed pump. Any suggestions on what might be the quietest single speed pump? We're looking at the Pentair WhisperFlo. Thank you!