The house we are under contract on has an Aqualink system, it has a PDA and the SWG 1400 system combined. I got a picture inside the unit, is there anyway to tell how old it is with the serial number? I understand some need to be upgraded?

It has a 2.5 hp Jandy plus hp pump. Being that I'm cost conscious and I know that my 1.5 hp current pump sucks up electricity, I would prefer to go with a variable speed or 2 speed pump motor. What is the most cost effective way to do it?