more specifically the

Power Flo Matrix Hayward 1.5hp
Pentair Dynamo 1.5hp
Waterway Hi Flo 2 speed 1.5 or 2 hp

My current setup is 2 hp Hayward with 250 pound sand filter with a 30' ag 52" walls. Im leaning toward the Waterway for the two speed feature, anyone know anything about them?

the two main concerns are reliability and noise is a concern.

Thanks