Do I still need a conventional AC powered pool pump?


In most cases no. The solar pump has the ability to pump as well as a standard 1 horsepower pool pump. If the ability to pump after dark is desired or required, then the standard pool pump may be left in place and connected in parallel with the solar pump.

We would recommend using the Lorentz AC Power Pack instead of a conventional pump if any significant amount of after-dark pumping is going to be done. The solar pump & power pack together are still more than 50% more efficient than a conventional pool pump.