Do I need a pool cover pump to keep rainwater off the cover?

Yes, you need a pool cover pump to keep rainwater and debris off the cover so it doesn’t sag, tear, or turn into a mosquito breeding ground. Pool covers aren’t designed to hold standing water — even a heavy-duty cover will sag and risk damage. A small submersible pump sits on the cover, kicks on automatically, and sends the water to a drain or yard, extending the cover’s life and preventing a messy spring opening.