Winter Season Reminder – Cold nights in Northern California:

During nights and early mornings, when temperatures are expected to fall at night below freezing, your pool filter pump should be running during the night and early morning. Circulating water through the exposed pipes and equipment prevents ice formation and potential damage to your pipes and pool equipment.

You need to turn the pump on and off manually, unless you have a pool controller with an automatic freeze protection function. We cannot set the timer to cover this condition without running the pump excessive time and wasting your electric bill.