Looking to replace current pump (or motor) with something more energy efficient as our electrical rates here in CA are pretty high in the summer. specs on our current pump are in my siggy. Pool is old-style 1960's vintage with one skimmer and one return and we suspect that the previous owners probably shut off the main drain b/c it has the old-style noncompliant cover - (including this info b/c I'm not sure if this setup affects the amount of time it would take to turn the water over). Suggestions? thanks