Getting ready to order my pool and equipment. Just noticed the pump I had decided on - Pentair Dynamo 1hp/2spd - comes without a cord. Okay, maybe I am just clueless, but why would you want a pump without a cord? I can't find the same Pentair Dynamo with cord. Thinking about going with a Hayward Powerflo Matrix instead... because it has a cord. Maybe you guys can clue me in about the "no cord" pumps.