I recently bought a house with a pool. The pump/motor is a 1.5 HP AO smith centurion single speed pump and it is really loud when running, and I've noticed that my neighbor has a pump and pool about the same size as mine with a super quiet pump/motor. There is no screeching or anything that sounds detrimental, just loud. The previous owner says the pump is original which makes it about 10 years old. I'm looking to buy a replacement to keep on hand when this one dies on me. I think I've narrowed my choice down to a 2 speed pump due to cheap electricity and the fact that I don't operate my pool all year.
My question is: do I replace the whole pump/motor assembly or just replace the motor itself? Would I need to get another centurion motor to connect to my current system with as few changes as possible? Any help or thoughts are greatly appreciated!